mini canvas

.gitignore

@@ -1,3 +1,5 @@
 *.o
-firmware.*
+firmware.txt
+firmware.elf
+firmware.map
 

game-ctrl/Makefile

@@ -7,11 +7,11 @@ MCU=msp430g2553
 CFLAGS=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -O1 -g0
 
 # for debugging
-# CFLAGS+= -g3 -ggdb -gdwarf-2
+#CFLAGS+= -g3 -ggdb -gdwarf-2
 
 LDFLAGS=-mmcu=$(MCU) -L $(TOOLCHAIN_PREFIX)/include
 
-$(ARTIFACT).elf:	main.o led.o time.o PontCoopScheduler.o displayDriver.o canvas.o shapes.o shape_i.o shape_j.o shape_l.o shape_o.o shape_s.o shape_t.o shape_z.o game.o buttons.o
+$(ARTIFACT).elf:	main.o led.o scheduler.o canvas.o shapes.o game.o buttons.o myrand.o
 	$(CC) -o $@ $(LDFLAGS) $^
 	$(OBJDUMP) -D $(ARTIFACT).elf > $(ARTIFACT).txt
 

game-ctrl/buttons.c

@@ -1,56 +1,57 @@
-#include "stddef.h"
+#include <stddef.h>
-#include "stdint.h"
+#include <stdint.h>
+#include <msp430g2553.h>
 
 #include "buttons.h"
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 #include "shapes.h"
 #include "canvas.h"
 #include "led.h"
 
 
-// TEST CODE
-uint16_t counter;
-
 
 static uint8_t buttonsMoveLeftPressed() {
-  // -----------------------
+  static uint8_t last = 0;
-  // TEST CODE
+  uint8_t current = (P2IN & BIT4);
-  //if (counter == 25) {
+  uint8_t res = (current != 0) && (current != last);
-  //  ledGreenToggle();
+  last = current;
-  //  return 1;
+  return res;
-  //}
-  // -----------------------
-  return 0;
 }
 
 static uint8_t buttonsMoveRightPressed() {
-  return 0;
+  static uint8_t last = 0;
+  uint8_t current = (P2IN & BIT0);
+  uint8_t res = (current != 0) && (current != last);
+  last = current;
+  return res;
 }
 
 static uint8_t buttonsRotateLeftPressed() {
-  // -----------------------
+  static uint8_t last = 0;
-  // TEST CODE
+  uint8_t current = (P2IN & BIT3);
-  if (counter == 35) {
+  uint8_t res = (current != 0) && (current != last);
-    ledGreenToggle();
+  last = current;
-    return 1;
+  return res;
-  }
-  // -----------------------
-  return 0;
 }
 
 static uint8_t buttonsRotateRightPressed() {
-  return 0;
+  static uint8_t last = 0;
+  uint8_t current = (P2IN & BIT1);
+  uint8_t res = (current != 0) && (current != last);
+  last = current;
+  return res;
+}
+
+static uint8_t buttonsMoveDownPressed() {
+  return P2IN & BIT2;
 }
 
 void buttonsExec(void *handle) {
-  if (stone.shape == e_ShapeInvalid) {
+  if (! stoneIsValid()) {
     // don't do anything, the stone has not been initialized
     return;
   }
 
-  // TEST CODE
-  counter++;
-
   uint8_t buttonPressed = 0;
 
   if (buttonsMoveLeftPressed()) {
@@ -69,6 +70,10 @@ void buttonsExec(void *handle) {
     stoneRotateRight();
     buttonPressed = 1;
   }
+  if (buttonsMoveDownPressed()) {
+    stoneMoveDown();
+    buttonPressed = 1;
+  }
 
   if (buttonPressed == 1) {
     canvasShow();
@@ -76,9 +81,8 @@ void buttonsExec(void *handle) {
 }
 
 void buttonsInit() {
-  // TEST CODE
+  P2DIR &= ~(BIT0|BIT1|BIT2|BIT3|BIT4);
-  counter = 0;
 
-  schAdd(buttonsExec, NULL, 0, 100);
+  schAdd(buttonsExec, NULL, 0, 25);
 }
 

game-ctrl/canvas.c

@@ -1,39 +1,105 @@
 #include <string.h>
 #include <stdint.h>
 
+#include <msp430g2553.h>
+
 #include "canvas.h"
-#include "displayDriver.h"
 
 
 static uint8_t canvasStorage[CANVAS_WIDTH * CANVAS_HEIGHT];
 const canvas_t canvas = { 
   .height = CANVAS_HEIGHT,
   .width = CANVAS_WIDTH,
-  .size = CANVAS_WIDTH * CANVAS_HEIGHT,
   .canvas = canvasStorage
 };
 
-void canvasInit() {
+static uint8_t miniCanvasStorage[MINI_CANVAS_WIDTH * MINI_CANVAS_HEIGHT];
-  canvasClear();
+const canvas_t miniCanvas = { 
-  displayDriverTransferCanvas();
+  .height = MINI_CANVAS_HEIGHT,
-}
+  .width = MINI_CANVAS_WIDTH,
+  .canvas = miniCanvasStorage
+};
 
-void canvasClear() {
+inline static void spiSendOctet(uint8_t v) {
-  memset(canvas.canvas, 0x80, canvas.size);
+  // wait for TX buffer empty
-}
+  while (!(UC0IFG & UCB0TXIFG));
-
+  // load octet into TX buffer
-void canvasSetAll(uint8_t color) {
+  UCB0TXBUF = v;
-  memset(canvas.canvas, color + 0x80, canvas.size);
 }
 
 void canvasShow() {
-  displayDriverTransferCanvas();
+  // wait for signal waiting for data
+  while (!(P1IN & BIT3));
+
+  for (uint8_t i = 0; i < (CANVAS_WIDTH*CANVAS_HEIGHT); i++) {
+    if ((*((canvas.canvas)+i) & 0x80) != 0) {
+      *((canvas.canvas)+i) &= ~0x80;
+      spiSendOctet(i);
+      spiSendOctet(*((canvas.canvas)+i));
+    }
+  }
+  for (uint8_t i = 0; i < (MINI_CANVAS_WIDTH*MINI_CANVAS_HEIGHT); i++) {
+    if ((*((miniCanvas.canvas)+i) & 0x80) != 0) {
+      *((miniCanvas.canvas)+i) &= ~0x80;
+      spiSendOctet(i + (CANVAS_HEIGHT*CANVAS_WIDTH));
+      spiSendOctet(*((miniCanvas.canvas)+i));
+    }
+  }
+  spiSendOctet(0xfe);
 }
 
+void canvasInit() {
+  // SPI in master mode
+  UCB0CTL0 = UCMST;
+  // SPI timing config
+  UCB0CTL1 = UCSSEL_3;
+  // Faster than 8 ends up in strange communication errors
+  // between the both MCUs.
+  // With 8 the transfer of a complete 110 pixel canvas takes
+  // about 720us.
+  // 8 was still too fast and caused problems.
+  UCB0BR0 = 16; 
+  UCB0BR1 = 0;
+
+  // BIT5: UCB0CLK
+  // BIT6: UCB0SOMI
+  // BIT7: UCB0SIMO
+  P1SEL |= BIT5 | BIT6 | BIT7;
+  P1SEL2 |= BIT5 | BIT6 | BIT7;
+  P1DIR |= BIT5 | BIT7;
+
+  // P1.3 is signal line
+  P1DIR &= ~BIT3;
+
+  // enable SPI module
+  UCB0CTL1 &= ~UCSWRST;
+
+
+  canvasClear();
+  miniCanvasClear();
+  canvasShow();
+}
+
+void canvasClear() {
+  memset(canvas.canvas, 0x80, CANVAS_WIDTH*CANVAS_HEIGHT);
+}
+
+void miniCanvasClear() {
+  memset(miniCanvas.canvas, 0x80, MINI_CANVAS_WIDTH*MINI_CANVAS_HEIGHT);
+}
+
+//void canvasSetAll(uint8_t color) {
+//  memset(canvas.canvas, color + 0x80, CANVAS_WIDTH*CANVAS_HEIGHT);
+//}
+
 void canvasSetPixel(uint8_t column, uint8_t row, uint8_t color) {
   *((canvas.canvas) + (row * canvas.width + column)) = (color + 0x80);
 }
 
+void miniCanvasSetPixel(uint8_t column, uint8_t row, uint8_t color) {
+  *((miniCanvas.canvas) + (row * miniCanvas.width + column)) = (color + 0x80);
+}
+
 void canvasWipeRow(uint8_t row) {
   memmove(((canvas.canvas)+canvas.width), canvas.canvas, canvas.width*row);
   for (uint8_t i = 10; i < canvas.width*(row+1); i++) {

game-ctrl/canvas.h

@@ -3,9 +3,10 @@
 
 #include <stdint.h>
 
+// Definition of CANVAS_WIDTH and CANVAS_HEIGHT
+// imported from rgb-driver
+#include "../rgb-driver/canvasSize.h"
 
-#define CANVAS_WIDTH 10
-#define CANVAS_HEIGHT 11 
 
 typedef struct {
   const uint8_t width;
@@ -16,13 +17,13 @@ typedef struct {
 
 void canvasInit();
 void canvasClear();
-void canvasSetAll(uint8_t color);
+void miniCanvasClear();
+//void canvasSetAll(uint8_t color);
 void canvasShow();
 void canvasSetPixel(uint8_t column, uint8_t row, uint8_t color);
+void miniCanvasSetPixel(uint8_t column, uint8_t row, uint8_t color);
 uint8_t canvasIsPixelFree(uint8_t column, uint8_t row);
 void canvasWipeRow(uint8_t row);
 uint8_t canvasIsRowFilled(uint8_t row);
 
-extern const canvas_t canvas;
-
 #endif // _CANVAS_H_

game-ctrl/displayDriver.c

@@ -1,57 +0,0 @@
-#include "displayDriver.h"
-#include "led.h"
-#include "canvas.h"
-#include <msp430g2553.h>
-#include <stdlib.h>
-#include <stdint.h>
-
-
-
-inline static void spiSendOctet(uint8_t v) {
-  // wait for TX buffer empty
-  while (!(UC0IFG & UCB0TXIFG));
-  // load octet into TX buffer
-  UCB0TXBUF = v;
-}
-
-void displayDriverTransferCanvas() {
-  // wait for signal waiting for data
-  while ((P1IN & BIT3) == 0);
-
-  for (uint8_t i = 0; i < canvas.size; i++) {
-    if ((*((canvas.canvas)+i) & 0x80) != 0) {
-      *((canvas.canvas)+i) &= ~0x80;
-      spiSendOctet(i);
-      spiSendOctet(*((canvas.canvas)+i));
-    }
-  }
-  spiSendOctet(0xfe);
-}
-
-void displayDriverInit() {
-  // SPI in master mode
-  UCB0CTL0 = UCMST;
-  // SPI timing config
-  UCB0CTL1 = UCSSEL_3;
-  // Faster than 8 ends up in strange communication errors
-  // between the both MCUs.
-  // With 8 the transfer of a complete 110 pixel canvas takes
-  // about 720us.
-  UCB0BR0 = 8; 
-  UCB0BR1 = 0;
-
-  // BIT5: UCB0CLK
-  // BIT6: UCB0SOMI
-  // BIT7: UCB0SIMO
-  P1SEL |= BIT5 | BIT6 | BIT7;
-  P1SEL2 |= BIT5 | BIT6 | BIT7;
-  P1DIR |= BIT5 | BIT7;
-
-  // P1.3 is signal line
-  P1DIR &= ~BIT3;
-
-  // enable SPI module
-  UCB0CTL1 &= ~UCSWRST;
-}
-
-

game-ctrl/displayDriver.h

@@ -1,9 +0,0 @@
-#ifndef _DISPLAY_DRIVER_H_
-#define _DISPLAY_DRIVER_H_
-
-void displayDriverInit();
-void displayDriverTransferCanvas();
-
-
-
-#endif // _DISPLAY_DRIVER_H_

game-ctrl/firmware.gdb

@@ -0,0 +1,2 @@
+target remote localhost:2000
+file firmware.elf

game-ctrl/game.c

@@ -2,7 +2,7 @@
 #include "stdint.h"
 
 #include "game.h"
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 #include "shapes.h"
 #include "canvas.h"
 
@@ -38,13 +38,13 @@ void gameExec(void *handle) {
       break;
 
     case e_gameOver:
-      for (uint8_t c = 0; c < canvas.width; c++) {
+      for (uint8_t c = 0; c < CANVAS_WIDTH; c++) {
         canvasSetPixel(c, 0, 0x0d);
-        canvasSetPixel(c, canvas.height-1, 0x0d);
+        canvasSetPixel(c, CANVAS_HEIGHT - 1, 0x0d);
       }
-      for (uint8_t r = 0; r < canvas.height; r++) {
+      for (uint8_t r = 0; r < CANVAS_HEIGHT; r++) {
         canvasSetPixel(0, r, 0x0d);
-        canvasSetPixel(canvas.width-1, r, 0x0d);
+        canvasSetPixel(CANVAS_WIDTH - 1, r, 0x0d);
       }
       delay = 10;
       state = e_delay;
@@ -59,6 +59,12 @@ void gameExec(void *handle) {
   }
 
   canvasShow();
+  for (uint8_t r = 0; r < CANVAS_HEIGHT; r++) {
+    if (canvasIsRowFilled(r)) {
+      canvasWipeRow(r);
+      canvasShow();
+    }
+  }
 }
 
 void gameInit() {

game-ctrl/led.c

@@ -1,6 +1,6 @@
 #include "led.h"
 #include <msp430g2553.h>
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 #include <stdlib.h>
 
 

game-ctrl/main.c

@@ -4,13 +4,13 @@
 #include <stdbool.h>
 
 #include "time.h"
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 #include "led.h"
-#include "displayDriver.h"
 #include "canvas.h"
 #include "game.h"
 #include "buttons.h"
 #include "shapes.h"
+#include "myrand.h"
 
 
 int main() {
@@ -24,11 +24,10 @@ int main() {
     BCSCTL2 = 0;
     BCSCTL3 = 0;
 
-    timeInit();
     schInit();
 
     ledInit();
-    displayDriverInit();
+    myRandInit();
     canvasInit();
 
     shapesInit();

game-ctrl/myrand.c

@@ -0,0 +1,26 @@
+#include <stdint.h>
+#include <msp430g2553.h>
+
+#include "myrand.h"
+
+void myRandInit() {
+  ADC10CTL1 = INCH_10;
+  ADC10CTL0 = SREF_1 | ADC10SHT_1 | REFON | ADC10ON;
+}
+
+uint16_t myRandGet() {
+  uint16_t res = 0;
+
+  for (uint8_t i = 0; i < 16; i++) {
+    ADC10CTL0 |= ENC | ADC10SC;
+
+    while ((ADC10CTL1 & ADC10BUSY));
+  
+    res <<= 1;
+    res |= ADC10MEM & 0x0001;
+  }
+
+  return res;
+}
+
+  

game-ctrl/myrand.h

@@ -0,0 +1,8 @@
+#ifndef _MYRAND_H_
+#define _MYRAND_H_
+
+void myRandInit();
+uint16_t myRandGet();
+
+
+#endif // _MYRAND_H_

game-ctrl/scheduler.c

@@ -1,21 +1,23 @@
 /*
  * PontCoopScheduler.c
  *
- *  Created on: 29.08.2016
+ *  Originally created on: 29.08.2016
  *      Author: wn
  */
 
 
 #include <stdlib.h>
 #include <msp430g2553.h>
-
+#include "scheduler.h"
-
-#include "PontCoopScheduler.h"
 
 tTask tasks[MAX_NUM_OF_TASKS];
 
 
 void schInit() {
+  TACCR0 = 32;
+  TACCTL0 = CCIE;
+  TACTL = MC_1 | ID_0 | TASSEL_1 | TACLR;
+
   for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
     tasks[i].delay = 0;
     tasks[i].period = 0;
@@ -25,6 +27,19 @@ void schInit() {
   }
 }
 
+void __attribute__ ((interrupt (TIMER0_A0_VECTOR))) schUpdate() {
+  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
+    if (tasks[i].exec != NULL) {
+      if (tasks[i].delay == 0) {
+        tasks[i].delay = tasks[i].period;
+        tasks[i].run++;
+      } else {
+        tasks[i].delay--;
+      }
+    }
+  }
+}
+
 void schAdd(void (*exec)(void *), void *handle, uint32_t delay, uint32_t period) {
   for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
     if (tasks[i].exec == NULL) {
@@ -75,16 +90,3 @@ void schExec() {
 }
 
 
-
-void schUpdate() {
-  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
-    if (tasks[i].exec != NULL) {
-      if (tasks[i].delay == 0) {
-        tasks[i].delay = tasks[i].period;
-        tasks[i].run++;
-      } else {
-        tasks[i].delay--;
-      }
-    }
-  }
-}

game-ctrl/shape_i.c

@@ -1,137 +0,0 @@
-#include "shapes.h"
-#include "shape_i.h"
-#include "canvas.h"
-#include "../rgb-driver/colors.h"
-
-
-#define COLOR _cyan
-
-typedef struct {
-  uint8_t x;
-  uint8_t y;
-} pixel_t;
-
-typedef struct {
-  int8_t x;
-  int8_t y;
-} offset_t;
-
-typedef struct {
-  offset_t set[4];
-  offset_t reset[4];
-  offset_t offset;
-} motion_t;
-
-typedef struct {
-  uint8_t color;
-  pixel_t draw[4];
-  motion_t motion[5][4];
-} motionTable_t;
-
-const motionTable_t motions[1] = {
-  { // i
-    .color = _cyan,
-    .draw = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} },
-    .motion = {
-      { 
-        // move down
-        { .set = { { 0, 4}, { 0, 4}, { 0, 4}, { 0, 4} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 1} }, // 0
-        { .set = { { 0, 1}, { 1, 1}, { 2, 1}, { 3, 1} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 3, 0} }, .offset = { 0, 1} }, // 90
-        { .set = { { 0, 4}, { 0, 4}, { 0, 4}, { 0, 4} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 1} }, // 180
-        { .set = { { 0, 1}, { 1, 1}, { 2, 1}, { 3, 1} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 3, 0} }, .offset = { 0, 1} }  // 270
-      },
-      { 
-        // move left
-        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = {-1, 0} }, // 0
-        { .set = { {-1, 0}, {-1, 0}, {-1, 0}, {-1, 0} }, .reset = { { 3, 0}, { 3, 0}, { 3, 0}, { 3, 0} }, .offset = { 0, 1} }, // 90
-        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = {-1, 0} }, // 180
-        { .set = { {-1, 0}, {-1, 0}, {-1, 0}, {-1, 0} }, .reset = { { 3, 0}, { 3, 0}, { 3, 0}, { 3, 0} }, .offset = { 0, 1} }, // 270
-      },
-      { 
-        // move right
-        { .set = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = { 1, 0} }, // 0
-        { .set = { { 4, 0}, { 4, 0}, { 4, 0}, { 4, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 1, 0} }, // 90
-        { .set = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = { 1, 0} }, // 180
-        { .set = { { 4, 0}, { 4, 0}, { 4, 0}, { 4, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 1, 0} }, // 270
-      },
-      { 
-        // rotate left
-        { .set = { {-1, 1}, { 1, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-1, 1} }, // 0
-        { .set = { { 1,-2}, { 1,-1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-2} }, // 90
-        { .set = { {-1, 1}, { 1, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-1, 1} }, // 180
-        { .set = { { 1,-2}, { 1,-1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-2} }, // 270
-      },
-      { 
-        // rotate right
-        { .set = { {-2, 1}, {-1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-2, 1} }, // 0
-        { .set = { { 2,-2}, { 2,-1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 1, 0}, { 3, 0}, { 3, 0} }, .offset = { 2,-2} }, // 90
-        { .set = { {-2, 1}, {-1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-2, 1} }, // 180
-        { .set = { { 2,-2}, { 2,-1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 1, 0}, { 3, 0}, { 3, 0} }, .offset = { 2,-2} }, // 270
-      },
-    }
-  }
-};
-
-uint8_t draw_i() {
-  uint8_t res = 0;
-  if (canvasIsPixelFree(stone.x + motions[stone.shape].draw[0].x, stone.y + motions[stone.shape].draw[0].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].draw[1].x, stone.y + motions[stone.shape].draw[1].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].draw[2].x, stone.y + motions[stone.shape].draw[2].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].draw[3].x, stone.y + motions[stone.shape].draw[3].y)) {
-    canvasSetPixel(stone.x + motions[stone.shape].draw[0].x, stone.y + motions[stone.shape].draw[0].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].draw[1].x, stone.y + motions[stone.shape].draw[1].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].draw[2].x, stone.y + motions[stone.shape].draw[2].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].draw[3].x, stone.y + motions[stone.shape].draw[3].y, motions[stone.shape].color);
-    res = 1;
-  }
-  return res;
-}
-
-uint8_t move(direction_t direction) {
-  uint8_t res = 0;
-  if (canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y)) {
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[0].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[0].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[1].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[1].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[2].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[2].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[3].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[3].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y, motions[stone.shape].color);
-    stone.x += motions[stone.shape].motion[direction][stone.orientation].offset.x;
-    stone.y += motions[stone.shape].motion[direction][stone.orientation].offset.y;
-    res = 1;
-  }
-  return res;
-}
-
-uint8_t moveDown_i() {
-  return move(e_MoveDown);
-}
-
-uint8_t moveLeft_i() {
-  return move(e_MoveLeft);
-}
-
-uint8_t moveRight_i() {
-  return move(e_MoveRight);
-}
-
-uint8_t rotateLeft_i() {
-  uint8_t res = move(e_RotateLeft);
-  if (res) {
-    stone.orientation = ((orientation_t[]){ e_270, e_0, e_90, e_180 })[stone.orientation];
-  }
-  return res;
-}
-
-uint8_t rotateRight_i() {
-  uint8_t res = move(e_RotateRight);
-  if (res) {
-    stone.orientation = ((orientation_t[]){ e_90, e_180, e_270, e_0 })[stone.orientation];
-  }
-  return res;
-}

game-ctrl/shape_i.h

@@ -1,14 +0,0 @@
-#ifndef _SHAPE_I_H_
-#define _SHAPE_I_H_
-
-#include <stdint.h>
-
-uint8_t draw_i();
-uint8_t moveDown_i();
-uint8_t moveRight_i();
-uint8_t moveLeft_i();
-uint8_t rotateLeft_i();
-uint8_t rotateRight_i();
-
-
-#endif // _SHAPE_I_H_

game-ctrl/shape_j.c

@@ -1,26 +0,0 @@
-#include "shapes.h"
-#include "shape_j.h"
-
-uint8_t draw_j() {
-  return 0;
-}
-
-uint8_t moveDown_j() {
-  return 0;
-}
-
-uint8_t moveLeft_j() {
-  return 0;
-}
-
-uint8_t moveRight_j() {
-  return 0;
-}
-
-uint8_t rotateLeft_j() {
-  return 0;
-}
-
-uint8_t rotateRight_j() {
-  return 0;
-}

game-ctrl/shape_j.h

@@ -1,14 +0,0 @@
-#ifndef _SHAPE_J_H_
-#define _SHAPE_J_H_
-
-#include <stdint.h>
-
-uint8_t draw_j();
-uint8_t moveDown_j();
-uint8_t moveRight_j();
-uint8_t moveLeft_j();
-uint8_t rotateLeft_j();
-uint8_t rotateRight_j();
-
-
-#endif // _SHAPE_J_H_

game-ctrl/shape_l.c

@@ -1,26 +0,0 @@
-#include "shapes.h"
-#include "shape_l.h"
-
-uint8_t draw_l() {
-  return 0;
-}
-
-uint8_t moveDown_l() {
-  return 0;
-}
-
-uint8_t moveLeft_l() {
-  return 0;
-}
-
-uint8_t moveRight_l() {
-  return 0;
-}
-
-uint8_t rotateLeft_l() {
-  return 0;
-}
-
-uint8_t rotateRight_l() {
-  return 0;
-}

game-ctrl/shape_l.h

@@ -1,14 +0,0 @@
-#ifndef _SHAPE_L_H_
-#define _SHAPE_L_H_
-
-#include <stdint.h>
-
-uint8_t draw_l();
-uint8_t moveDown_l();
-uint8_t moveRight_l();
-uint8_t moveLeft_l();
-uint8_t rotateLeft_l();
-uint8_t rotateRight_l();
-
-
-#endif // _SHAPE_L_H_

game-ctrl/shape_o.c

@@ -1,26 +0,0 @@
-#include "shapes.h"
-#include "shape_o.h"
-
-uint8_t draw_o() {
-  return 0;
-}
-
-uint8_t moveDown_o() {
-  return 0;
-}
-
-uint8_t moveLeft_o() {
-  return 0;
-}
-
-uint8_t moveRight_o() {
-  return 0;
-}
-
-uint8_t rotateLeft_o() {
-  return 0;
-}
-
-uint8_t rotateRight_o() {
-  return 0;
-}

game-ctrl/shape_o.h

@@ -1,14 +0,0 @@
-#ifndef _SHAPE_O_H_
-#define _SHAPE_O_H_
-
-#include <stdint.h>
-
-uint8_t draw_o();
-uint8_t moveDown_o();
-uint8_t moveRight_o();
-uint8_t moveLeft_o();
-uint8_t rotateLeft_o();
-uint8_t rotateRight_o();
-
-
-#endif // _SHAPE_O_H_

game-ctrl/shape_s.c

@@ -1,26 +0,0 @@
-#include "shapes.h"
-#include "shape_s.h"
-
-uint8_t draw_s() {
-  return 0;
-}
-
-uint8_t moveDown_s() {
-  return 0;
-}
-
-uint8_t moveLeft_s() {
-  return 0;
-}
-
-uint8_t moveRight_s() {
-  return 0;
-}
-
-uint8_t rotateLeft_s() {
-  return 0;
-}
-
-uint8_t rotateRight_s() {
-  return 0;
-}

game-ctrl/shape_s.h

@@ -1,14 +0,0 @@
-#ifndef _SHAPE_S_H_
-#define _SHAPE_S_H_
-
-#include <stdint.h>
-
-uint8_t draw_s();
-uint8_t moveDown_s();
-uint8_t moveRight_s();
-uint8_t moveLeft_s();
-uint8_t rotateLeft_s();
-uint8_t rotateRight_s();
-
-
-#endif // _SHAPE_S_H_

game-ctrl/shape_t.c

@@ -1,26 +0,0 @@
-#include "shapes.h"
-#include "shape_t.h"
-
-uint8_t draw_t() {
-  return 0;
-}
-
-uint8_t moveDown_t() {
-  return 0;
-}
-
-uint8_t moveLeft_t() {
-  return 0;
-}
-
-uint8_t moveRight_t() {
-  return 0;
-}
-
-uint8_t rotateLeft_t() {
-  return 0;
-}
-
-uint8_t rotateRight_t() {
-  return 0;
-}

game-ctrl/shape_t.h

@@ -1,14 +0,0 @@
-#ifndef _SHAPE_T_H_
-#define _SHAPE_T_H_
-
-#include <stdint.h>
-
-uint8_t draw_t();
-uint8_t moveDown_t();
-uint8_t moveRight_t();
-uint8_t moveLeft_t();
-uint8_t rotateLeft_t();
-uint8_t rotateRight_t();
-
-
-#endif // _SHAPE_T_H_

game-ctrl/shape_z.c

@@ -1,26 +0,0 @@
-#include "shapes.h"
-#include "shape_z.h"
-
-uint8_t draw_z() {
-  return 0;
-}
-
-uint8_t moveDown_z() {
-  return 0;
-}
-
-uint8_t moveLeft_z() {
-  return 0;
-}
-
-uint8_t moveRight_z() {
-  return 0;
-}
-
-uint8_t rotateLeft_z() {
-  return 0;
-}
-
-uint8_t rotateRight_z() {
-  return 0;
-}

game-ctrl/shape_z.h

@@ -1,14 +0,0 @@
-#ifndef _SHAPE_Z_H_
-#define _SHAPE_Z_H_
-
-#include <stdint.h>
-
-uint8_t draw_z();
-uint8_t moveDown_z();
-uint8_t moveRight_z();
-uint8_t moveLeft_z();
-uint8_t rotateLeft_z();
-uint8_t rotateRight_z();
-
-
-#endif // _SHAPE_Z_H_

game-ctrl/shapes.c

@@ -1,72 +1,493 @@
 #include <stdint.h>
 #include <stddef.h>
+#include <stdlib.h>
 
 #include "shapes.h"
-#include "shape_i.h"
+#include "myrand.h"
-#include "shape_o.h"
+#include "canvas.h"
-#include "shape_t.h"
+#include "../rgb-driver/colors.h"
-#include "shape_z.h"
-#include "shape_s.h"
-#include "shape_l.h"
-#include "shape_j.h"
 
 
 
+
+typedef enum { e_I=0, e_O, e_T, e_Z, e_S, e_L, e_J, e_ShapeInvalid } shape_t;
+typedef enum { e_MoveDown, e_MoveLeft, e_MoveRight, e_RotateLeft, e_RotateRight } direction_t;
+typedef enum { e_0, e_90, e_180, e_270, e_Keep } orientation_t;
+
 typedef struct {
-  uint8_t (* draw)();
+  shape_t shape;
-  uint8_t (*moveDown)();
+  orientation_t orientation;
-  uint8_t (*moveLeft)();
+  uint8_t x; // column
-  uint8_t (*moveRight)();
+  uint8_t y; // row
-  uint8_t (*rotateLeft)();
+} stone_t;
-  uint8_t (*rotateRight)();
-} stoneOperations_t;
 
-const stoneOperations_t stoneOperations[] = {
+typedef struct {
-  { .draw = draw_i, .moveDown = moveDown_i, .moveLeft = moveLeft_i, .moveRight = moveRight_i, .rotateLeft = rotateLeft_i, .rotateRight = rotateRight_i },
+  uint8_t x;
-  { .draw = draw_o, .moveDown = moveDown_o, .moveLeft = moveLeft_o, .moveRight = moveRight_o, .rotateLeft = rotateLeft_o, .rotateRight = rotateRight_o },
+  uint8_t y;
-  { .draw = draw_t, .moveDown = moveDown_t, .moveLeft = moveLeft_t, .moveRight = moveRight_t, .rotateLeft = rotateLeft_t, .rotateRight = rotateRight_t },
+} pixel_t;
-  { .draw = draw_z, .moveDown = moveDown_z, .moveLeft = moveLeft_z, .moveRight = moveRight_z, .rotateLeft = rotateLeft_z, .rotateRight = rotateRight_z },
+
-  { .draw = draw_s, .moveDown = moveDown_s, .moveLeft = moveLeft_s, .moveRight = moveRight_s, .rotateLeft = rotateLeft_s, .rotateRight = rotateRight_s },
+typedef struct {
-  { .draw = draw_l, .moveDown = moveDown_l, .moveLeft = moveLeft_l, .moveRight = moveRight_l, .rotateLeft = rotateLeft_l, .rotateRight = rotateRight_l },
+  int8_t x;
-  { .draw = draw_j, .moveDown = moveDown_j, .moveLeft = moveLeft_j, .moveRight = moveRight_j, .rotateLeft = rotateLeft_j, .rotateRight = rotateRight_j }
+  int8_t y;
+} offset_t;
+
+typedef struct {
+  offset_t set[4];
+  offset_t reset[4];
+  offset_t offset;
+} motion_t;
+
+typedef struct {
+  uint8_t color;
+  uint8_t nullRotation;
+  pixel_t draw[4];
+  motion_t motion[5][4];
+} motionTable_t;
+
+const motionTable_t motions[7] = { // size = number of implemented stones
+  { // I
+    .color = _cyan,
+    .nullRotation = 0,
+    .draw = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 4}, { 0, 4}, { 0, 4}, { 0, 4} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 1}, { 1, 1}, { 2, 1}, { 3, 1} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 3, 0} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 4}, { 0, 4}, { 0, 4}, { 0, 4} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 1}, { 1, 1}, { 2, 1}, { 3, 1} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 3, 0} }, .offset = { 0, 1} }  // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 0}, {-1, 0}, {-1, 0} }, .reset = { { 3, 0}, { 3, 0}, { 3, 0}, { 3, 0} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, {-1, 0}, {-1, 0}, {-1, 0} }, .reset = { { 3, 0}, { 3, 0}, { 3, 0}, { 3, 0} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = { 1, 0} }, // 0
+        { .set = { { 4, 0}, { 4, 0}, { 4, 0}, { 4, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 1, 0} }, // 90
+        { .set = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 3} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3} }, .offset = { 1, 0} }, // 180
+        { .set = { { 4, 0}, { 4, 0}, { 4, 0}, { 4, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { {-1, 1}, { 1, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-1, 1} }, // 0
+        { .set = { { 1,-2}, { 1,-1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-2} }, // 90
+        { .set = { {-1, 1}, { 1, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-1, 1} }, // 180
+        { .set = { { 1,-2}, { 1,-1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-2} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { {-2, 1}, {-1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-2, 1} }, // 0
+        { .set = { { 1,-1}, { 1, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-1} }, // 90
+        { .set = { {-2, 1}, {-1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-2, 1} }, // 180
+        { .set = { { 1,-1}, { 1, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-1} }, // 270
+      },
+    }
+  },
+  { // O
+    .color = _yellow,
+    .nullRotation = 1,
+    .draw = { { 0, 0}, { 0, 1}, { 1, 0}, { 1, 1} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 1, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 1, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 1, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 1, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 0
+        { .set = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 90
+        { .set = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 180
+        { .set = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 0
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 90
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 180
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 0
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 90
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 180
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 270
+      },
+    }
+  },
+  { // T
+    .color = _violet,
+    .nullRotation = 0,
+    .draw = { { 0, 0}, { 1, 0}, { 2, 0}, { 1, 1} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 1}, { 2, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 2}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 2}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 1, 0}, { 0, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 3}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 1, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = {-1, 0} }, // 0
+        { .set = { { 0, 0}, {-1, 1}, { 0, 2}, { 0, 2} }, .reset = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 1}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 1, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 2} }, .reset = { { 0, 0}, { 0, 2}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 3, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 1, 0} }, // 0
+        { .set = { { 2, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 1}, { 1, 0}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 90
+        { .set = { { 3, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 0, 1}, { 1, 0}, { 1, 0} }, .offset = { 1, 0} }, // 180
+        { .set = { { 1, 0}, { 1, 2}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 1,-1}, { 1,-1}, { 1,-1}, { 1,-1} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 1,-1} }, // 0
+        { .set = { { 2, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 1, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 90
+        { .set = { { 1, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 2, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 0} }, // 180
+        { .set = { {-1, 1}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 2}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 1,-1}, { 1,-1}, { 1,-1}, { 1,-1} }, .reset = { { 2, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 0
+        { .set = { { 2, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 1, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 90
+        { .set = { { 1, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 1}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 180
+        { .set = { {-1, 1}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = {-1, 1} }, // 270
+      },
+    }
+  },
+  { // Z
+    .color = _red,
+    .nullRotation = 0,
+    .draw = { { 0, 0}, { 1, 0}, { 1, 1}, { 2, 1} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 1}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 0
+        { .set = { { 1, 2}, { 0, 3}, { 0, 3}, { 0, 3} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 1}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 180
+        { .set = { { 1, 2}, { 0, 3}, { 0, 3}, { 0, 3} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 1, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 1}, {-1, 2}, { 0, 0}, { 0, 0} }, .reset = { { 1, 0}, { 1, 1}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 1, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 1}, {-1, 2}, { 0, 0}, { 0, 0} }, .reset = { { 1, 0}, { 1, 1}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 3, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 1, 0} }, // 0
+        { .set = { { 2, 0}, { 2, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 1}, { 0, 2}, { 1, 0}, { 1, 0} }, .offset = { 1, 0} }, // 90
+        { .set = { { 3, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 1, 0} }, // 180
+        { .set = { { 2, 0}, { 2, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 1}, { 0, 2}, { 1, 0}, { 1, 0} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 0
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 90
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 180
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 0
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 90
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 180
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 270
+      },
+    }
+  },
+  { // S
+    .color = _green,
+    .nullRotation = 0,
+    .draw = { { 0, 1}, { 1, 1}, { 1, 0}, { 2, 0} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 2}, { 1, 2}, { 2, 1}, { 2, 1} }, .reset = { { 0, 1}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 2}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 2}, { 1, 2}, { 2, 1}, { 2, 1} }, .reset = { { 0, 1}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 2}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { { 0, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 2, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 1}, { 0, 2}, { 0, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 90
+        { .set = { { 0, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 2, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, {-1, 1}, { 0, 2}, { 0, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 2, 1}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 0
+        { .set = { { 1, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 90
+        { .set = { { 2, 1}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 180
+        { .set = { { 1, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 0
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 90
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 180
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 0
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 90
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 180
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 270
+      },
+    }
+  },
+  { // L
+    .color = _orange,
+    .nullRotation = 0,
+    .draw = { { 0, 0}, { 0, 1}, { 0, 2}, { 1, 2} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 3}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 1} }, // 0
+        { .set = { { 1, 1}, { 2, 1}, { 0, 2}, { 0, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 1}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 2}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 2, 0}, { 0, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 2} }, .reset = { { 0, 0}, { 0, 1}, { 1, 2}, { 0, 0} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = {-1, 0} }, // 90
+        { .set = { { 0, 1}, { 0, 2}, {-1, 0}, {-1, 0} }, .reset = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 1}, { 1, 0}, { 1, 0}, { 1, 0} }, .reset = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 1, 0}, { 1, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 0
+        { .set = { { 1, 1}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 90
+        { .set = { { 2, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 180
+        { .set = { { 3, 0}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { {-1, 2}, {-2, 2}, {-2, 2}, {-2, 2} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = {-2, 1} }, // 0
+        { .set = { { 0,-1}, { 0,-2}, { 0,-2}, { 0,-2} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-2} }, // 90
+        { .set = { { 2, 0}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 180
+        { .set = { { 2, 2}, { 2, 3}, { 2, 3}, { 2, 3} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 1, 1} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 0, 3}, { 2, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 2} }, // 0
+        { .set = { {-1, 0}, { 0, 2}, { 0, 2}, { 0, 2} }, .reset = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, { 1,-1}, { 1,-1}, { 1,-1} }, .reset = { { 1, 1}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = {-1,-1} }, // 180
+        { .set = { { 2,-1}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 2,-1} }, // 270
+      },
+    }
+  },
+  { // J
+    .color = _blue,
+    .nullRotation = 0,
+    .draw = { { 0, 2}, { 1, 0}, { 1, 1}, { 1, 2} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 3}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 2}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 2}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 3}, { 1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 1}, { 1, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { { 0, 0}, { 0, 1}, {-1, 2}, {-1, 2} }, .reset = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 2} }, .reset = { { 1, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 2, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 1, 0}, { 1, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 0
+        { .set = { { 1, 0}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 90
+        { .set = { { 1, 1}, { 1, 2}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 180
+        { .set = { { 3, 0}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 1, 3}, {-1, 2}, {-1, 2}, {-1, 2} }, .reset = { { 1, 0}, { 1, 1}, { 0, 0}, { 0, 0} }, .offset = {-1, 2} }, // 0
+        { .set = { {-1, 1}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 1, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1,-1} }, // 90
+        { .set = { { 2, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = { 0,-1} }, // 180
+        { .set = { { 2, 2}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 2, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 2, 2}, { 3, 2}, { 3, 2}, { 3, 2} }, .reset = { { 1, 0}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = { 1, 1} }, // 0
+        { .set = { { 0, 2}, { 0, 3}, { 0, 3}, { 0, 3} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { {-1, 0}, {-2, 0}, {-2, 0}, {-2, 0} }, .reset = { { 1, 0}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = {-2, 0} }, // 180
+        { .set = { { 2,-1}, { 2,-2}, { 2,-2}, { 2,-2} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 1,-2} }, // 270
+      },
+    }
+  },
+};
+
+const orientation_t nextOrientation[5][4] = { // 5 = number of directions to move, 4 = number of orientation a stone can have
+  { e_Keep, e_Keep, e_Keep, e_Keep }, // move down,  current orientation: 0, 90, 180, 270
+  { e_Keep, e_Keep, e_Keep, e_Keep }, // move left
+  { e_Keep, e_Keep, e_Keep, e_Keep }, // move right
+  { e_270,  e_0,    e_90,   e_180  }, // rotate left
+  { e_90,   e_180,  e_270,  e_0    }  // rotate right
 };
 
 stone_t stone;
+shape_t nextShape;
 
 void shapesInit() {
   stone.shape = e_ShapeInvalid;
+  nextShape = e_Z;
 }
 
 void stoneCreate() {
-  stone.shape = e_I;
+  stone.shape = nextShape;
+  nextShape = ((shape_t[]){ e_I, e_O, e_T, e_Z, e_S, e_L, e_J })[myRandGet() % e_ShapeInvalid];
   stone.orientation = e_0;
-  stone.x = 5;
+  stone.x = 4;
   stone.y = 0;
 }
 
+uint8_t stoneIsValid() {
+  return stone.shape != e_ShapeInvalid;
+}
+
 // all of them return 1 in case of success and 0 in case of error
-uint8_t stoneDraw() {
+static uint8_t move(direction_t direction) {
-  return stoneOperations[stone.shape].draw();
+  // if this is a rotation and the shape is marked with nullRotation (just the O), do nothing
+  // and return success
+  if (motions[stone.shape].nullRotation && (direction == e_RotateLeft || direction == e_RotateRight)) {
+    return 1;
+  }
+  // check whether the pixels to move to are free
+  if (canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y)) {
+    // if so, reset the pixels the shape moves away from
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[0].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[0].y, 
+                   _off);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[1].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[1].y, 
+                   _off);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[2].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[2].y, 
+                   _off);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[3].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[3].y, 
+                   _off);
+    // and set the pixels the shape moves to to the shape's color
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y, 
+                   motions[stone.shape].color);
+    // set the new origin of the shape
+    stone.x += motions[stone.shape].motion[direction][stone.orientation].offset.x;
+    stone.y += motions[stone.shape].motion[direction][stone.orientation].offset.y;
+    // set the new orientation of the shape, if required
+    stone.orientation = (nextOrientation[direction][stone.orientation] == e_Keep) ? 
+                        stone.orientation : 
+                        nextOrientation[direction][stone.orientation];
+    return 1;
+  }
+  return 0;
+}
+
+void nextStoneDraw() {
+  miniCanvasClear();
+  miniCanvasSetPixel(motions[nextShape].draw[0].x, 
+                     motions[nextShape].draw[0].y, 
+                     motions[nextShape].color);
+  miniCanvasSetPixel(motions[nextShape].draw[1].x, 
+                     motions[nextShape].draw[1].y, 
+                     motions[nextShape].color);
+  miniCanvasSetPixel(motions[nextShape].draw[2].x, 
+                     motions[nextShape].draw[2].y, 
+                     motions[nextShape].color);
+  miniCanvasSetPixel(motions[nextShape].draw[3].x, 
+                     motions[nextShape].draw[3].y, 
+                     motions[nextShape].color);
+}
+
+uint8_t stoneDraw() { 
+  nextStoneDraw();
+
+  uint8_t res = 0;
+  // check if the pixels the shape should be drawn at are free
+  if (canvasIsPixelFree(stone.x + motions[stone.shape].draw[0].x, 
+                        stone.y + motions[stone.shape].draw[0].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].draw[1].x, 
+                        stone.y + motions[stone.shape].draw[1].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].draw[2].x, 
+                        stone.y + motions[stone.shape].draw[2].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].draw[3].x, 
+                        stone.y + motions[stone.shape].draw[3].y)) {
+    // if so, draw the shape
+    canvasSetPixel(stone.x + motions[stone.shape].draw[0].x, 
+                   stone.y + motions[stone.shape].draw[0].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].draw[1].x, 
+                   stone.y + motions[stone.shape].draw[1].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].draw[2].x, 
+                   stone.y + motions[stone.shape].draw[2].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].draw[3].x, 
+                   stone.y + motions[stone.shape].draw[3].y, 
+                   motions[stone.shape].color);
+    res = 1;
+  }
+  return res;
 }
 
 uint8_t stoneMoveDown() {
-  return stoneOperations[stone.shape].moveDown();
+  return move(e_MoveDown);
 }
 
 uint8_t stoneMoveLeft() {
-  return stoneOperations[stone.shape].moveLeft();
+  return move(e_MoveLeft);
 }
 
 uint8_t stoneMoveRight() {
-  return stoneOperations[stone.shape].moveRight();
+  return move(e_MoveRight);
 }
 
 uint8_t stoneRotateLeft() {
-  return stoneOperations[stone.shape].rotateLeft();
+  return move(e_RotateLeft);
 }
 
 uint8_t stoneRotateRight() {
-  return stoneOperations[stone.shape].rotateRight();
+  return move(e_RotateRight);
 }
 
 

game-ctrl/shapes.h

@@ -5,6 +5,7 @@
 
 void shapesInit();
 void stoneCreate();
+uint8_t stoneIsValid();
 uint8_t stoneDraw();
 uint8_t stoneMoveDown();
 uint8_t stoneMoveLeft();
@@ -13,18 +14,4 @@ uint8_t stoneRotateLeft();
 uint8_t stoneRotateRight();
 
 
-typedef enum { e_I=0, e_O, e_T, e_Z, e_S, e_L, e_J, e_ShapeInvalid } shape_t;
-typedef enum { e_MoveDown, e_MoveLeft, e_MoveRight, e_RotateLeft, e_RotateRight } direction_t;
-typedef enum { e_0, e_90, e_180, e_270 } orientation_t;
-
-typedef struct {
-  shape_t shape;
-  orientation_t orientation;
-  uint8_t x; // column
-  uint8_t y; // row
-} stone_t;
-
-
-extern stone_t stone;
-
 #endif // _SHAPES_H_

game-ctrl/time.c

@@ -1,16 +0,0 @@
-#include <msp430g2553.h>
-
-#include "time.h"
-#include "PontCoopScheduler.h"
-
-
-void __attribute__ ((interrupt (TIMER0_A0_VECTOR))) ta0_isr() {
-  schUpdate();
-}
-
-void timeInit() {
-  TACCR0 = 32;
-  TACCTL0 = CCIE;
-  TACTL = MC_1 | ID_0 | TASSEL_1 | TACLR;
-}
-

game-ctrl/time.h

@@ -1,10 +0,0 @@
-#ifndef TIME_H_
-#define TIME_H_
-
-#include <stdint.h>
-
-void timeInit();
-
-
-
-#endif /* TIME_H_ */

rgb-driver/Makefile

@@ -4,7 +4,8 @@ OBJDUMP=$(TOOLCHAIN_PREFIX)/bin/msp430-elf-objdump
 
 MCU=msp430g2553
 ARTIFACT=firmware
-COMMON=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -Os -g0 -fdata-sections -ffunction-sections -ggdb -gdwarf-2
+COMMON=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -Os -g0 -fdata-sections -ffunction-sections
+#COMMON+= -ggdb -gdwarf-2 # debug
 CFLAGS=$(COMMON)
 ASFLAGS=$(COMMON) -D__ASSEMBLER__
 

rgb-driver/canvasSize.h

@@ -0,0 +1,10 @@
+#ifndef _CANVAS_SIZE_H_
+#define _CANVAS_SIZE_H_
+
+#define CANVAS_WIDTH 10
+#define CANVAS_HEIGHT 20
+
+#define MINI_CANVAS_WIDTH 3
+#define MINI_CANVAS_HEIGHT 4
+
+#endif // _CANVAS_SIZE_H_

rgb-driver/main.S

@@ -1,5 +1,7 @@
 #include <msp430g2553.h>
 #include "colors.h"
+#include "canvasSize.h"
+
 
 #define PC r0
 #define SP r1
@@ -59,13 +61,11 @@
 
   .section ".data"
 screendata:
-  .rept 110 ;; number of leds in hardward
+  .rept (CANVAS_HEIGHT*CANVAS_WIDTH) + (MINI_CANVAS_HEIGHT*MINI_CANVAS_WIDTH) ;; number of leds in hardward
   .byte 0
   .endr
 screendataend:
   .byte 0xff
-data_forward_pointer:
-  .word 0
 
 
   ;; .text is the name of the section, it is a hint for the linker to
@@ -136,70 +136,20 @@ init:
 
 ;; ----------------------------------------------------
 mainloop:
-  call    #forwardscreen_init
   call    #resetscreen
 
 mainloop_draw:
   call    #drawscreen
 
-  ;; signal waiting for data
   set_signal_waiting_for_data
 
-  ;call    #forwardscreen
-  ;call    #wait
   call    #receivedata
 
-  ;; data has been received, clear signal
   clear_signal_waiting_for_data
 
   jmp     mainloop_draw
 
 
-;; ----------------------------------------------------
-wait:
-  push    r11
-  push    r12
-
-  mov.w   #0x0040, r11
-wait_continue_1:
-  mov.w   #0xffff, r12
-wait_continue_2:
-  dec.w   r12
-  jnz     wait_continue_2
-  dec.w   r11
-  jnz     wait_continue_1
-
-  pop     r12
-  pop     r11
-  ret
-
-
-;; ----------------------------------------------------
-forwardscreen_init:
-  mov.w   #screendata, &data_forward_pointer
-  ret
-
-;; ----------------------------------------------------
-forwardscreen:
-  push    r8
-  push    r10
-
-  mov.w   #screendataend, r8
-  mov.w   data_forward_pointer, r10
-  mov.b   #_off, @r10
-  inc.w   r10
-  mov.b   #_blue, @r10
-  cmp.w   r10, r8
-  jnz     forwardscreen_done
-  mov.w   #screendata, r10
-forwardscreen_done:
-  mov.w   r10, data_forward_pointer
-
-  pop     r10
-  pop     r8
-  ret
-  
-
 ;; ----------------------------------------------------
 resetscreen:
   push    r7
@@ -231,11 +181,6 @@ receivedata_wait_for_control_octet:
 
   ;; get control or address octet from buffer register
   mov.b   UCB0RXBUF, r9
-  ;; check whether value == 0xff (wait for the whole
-  ;; set of data to fill the screendata)
-  cmp.b   #0xff, r9
-  ;; receive all data
-  jz      receivedata_wait_for_all_data
   ;; check whether value == 0xfe (no more data)
   cmp.b   #0xfe, r9
   ;; no more data
@@ -253,10 +198,6 @@ receivedata_wait_for_octet:
   ;; next address/control octet
   jmp     receivedata_wait_for_control_octet
 
-receivedata_wait_for_all_data:
-  ;; this is a bit dangerous, if the application controller
-  ;; sends too few data, we are in a dead lock
-
 receivedata_end:
   pop     r10
   pop     r9