wn/graphic-test-01
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changed pixel bit added

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This commit is contained in:
Wolfgang Hottgenroth 2024-03-02 18:37:39 +01:00
parent 35113cc6cd
commit 0a474f59d8
1 changed files with 12 additions and 9 deletions
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21
test01.c
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@ -14,7 +14,7 @@ uint8_t canvas[CANVAS_WIDTH][CANVAS_HEIGHT];
#define I_HEIGHT 4 #define I_HEIGHT 4
#define I_WIDTH 1 #define I_WIDTH 1
#define I_COLOR 1 #define I_COLOR 2
typedef enum {e_O, e_I} t_shape; typedef enum {e_O, e_I} t_shape;
@ -50,6 +50,7 @@ void showCanvas() {
for (uint8_t y = 0; y < CANVAS_HEIGHT; y++) { for (uint8_t y = 0; y < CANVAS_HEIGHT; y++) {
for (uint8_t x = 0; x < CANVAS_WIDTH; x++) { for (uint8_t x = 0; x < CANVAS_WIDTH; x++) {
printf("%02x ", canvas[x][y]); printf("%02x ", canvas[x][y]);
canvas[x][y] &= ~0x80;
} }
printf("\n"); printf("\n");
} }
@ -107,24 +108,25 @@ void drawObject() {
} }
} }
// draw // draw
// the bit7 set marks changed pixels
switch (object.shape) { switch (object.shape) {
case e_O: case e_O:
switch (object.rotation) { switch (object.rotation) {
case 0: case 0:
canvas[object.x][object.y] = object.O[0][0]; canvas[object.x][object.y] = object.O[0][0] | 0x80;
canvas[object.x][object.y+1] = object.O[0][1]; canvas[object.x][object.y+1] = object.O[0][1] | 0x80;
canvas[object.x+1][object.y] = object.O[1][0]; canvas[object.x+1][object.y] = object.O[1][0] | 0x80;
canvas[object.x+1][object.y+1] = object.O[1][1]; canvas[object.x+1][object.y+1] = object.O[1][1] | 0x80;
break; break;
} }
break; break;
case e_I: case e_I:
switch (object.rotation) { switch (object.rotation) {
case 0: case 0:
canvas[object.x][object.y] = object.O[0][0]; canvas[object.x][object.y] = object.O[0][0] | 0x80;
canvas[object.x][object.y+1] = object.O[0][1]; canvas[object.x][object.y+1] = object.O[0][1] | 0x80;
canvas[object.x][object.y+2] = object.O[0][2]; canvas[object.x][object.y+2] = object.O[0][2] | 0x80;
canvas[object.x][object.y+3] = object.O[0][3]; canvas[object.x][object.y+3] = object.O[0][3] | 0x80;
break; break;
} }
break; break;
@ -163,6 +165,7 @@ int checkCanvasBordersForObject() {
} }
int checkOtherObjectsTouchedForObject() { int checkOtherObjectsTouchedForObject() {
return 0;
// return true if another object is touched // return true if another object is touched
int res = 0; int res = 0;