feat: draw dominos

1 files changed, 19 insertions, 3 deletions

diff --git a/game.c b/game.c
index 1cfc1a1..77ce70c 100644
--- a/game.c
+++ b/game.c
@@ -1,13 +1,17 @@
 #include <glad/glad.h>
 #include <GLFW/glfw3.h>
+#include <stdint.h>
+#include <stdio.h>
 
 #include "game.h"
+#include "assets/dominos.h"
 
 #define MIN(a,b) (((a)<(b))?(a):(b))
 #define MAX(a,b) (((a)>(b))?(a):(b))
 #define CLAMP(x,a,b) (MIN(MAX(x,a),b))
 
 int mouse_x = 0, mouse_y = 0;
+int eyes_front = 0, eyes_back = 0;
 
 void key_callback(int key, int scancode, int action, int mods) {
   if (action != GLFW_PRESS) return;
@@ -25,11 +29,23 @@ void cursor_position_callback(int xpos, int ypos) {
 }
 
 void mouse_button_callback(int button, int action, int mods) {
-    if (button == GLFW_MOUSE_BUTTON_RIGHT && action == GLFW_PRESS) {}
+  printf("click!\n");
+
+  if (button == GLFW_MOUSE_BUTTON_LEFT && action == GLFW_PRESS) {
+    if (++eyes_back >= NUM_DOMINO_X) {
+      eyes_back = 0;
+      eyes_front = (eyes_front+1)%NUM_DOMINO_Y;
+    }
+  }
 }
 
 void draw_image(decoded_image img) {
   // for (int i = 0; i < img.buf_size; i++) img.buf[i] = i;
-  img.buf[CLAMP(mouse_y, 0, img.height) * img.width +
-          CLAMP(mouse_x, 0, img.width)] = -1;
+
+  for (int y = 0; y < DOMINO_HEIGHT; y++) {
+    for (int x = 0; x < DOMINO_WIDTH; x++) {
+      img.buf[(CLAMP(mouse_y, 0, img.height) + y) * img.width + CLAMP(mouse_x, 0, img.width) + x] =
+        (*(uint32_t*) &domino[eyes_front][eyes_back][y * DOMINO_WIDTH * BYTES_PER_PIXEL + x * BYTES_PER_PIXEL]);
+    }
+  }
 }