a-game

commit ac38a202b97cbefca0ce820c3373f3b7f01ec9f4
parent 7f53d7e1ca61d73beffebe907186019f27875538
Author: Amin Mesbah <dev@aminmesbah.com>
Date:   Mon,  4 Mar 2019 17:48:51 -0800

Align the tile map to the upper left corner

Diffstat:
M
src/game.c
 | 
20
++++++++++++++------

1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/src/game.c b/src/game.c
@@ -245,15 +245,24 @@ void game_update_and_render(struct GameState *game_state, float dt, v2u framebuf
             { 1, 0, 1, 0,  1, 0, 1, 0,  1, 0, 1, 0,  1, 0, 1, 0, },
         };
 
-        uint32_t start = 25;
-        float size = fabsf(100 * sinf(dt));
+        float size;
+        if (screen_width < screen_height)
+        {
+            size = ((float)screen_width) / 16.0f;
+        }
+        else
+        {
+            size = ((float)screen_height) / 9.0f;
+        }
+
+        float start = size / 2.0f;
         for (size_t y = 0; y < 9; y++)
         {
             for (size_t x = 0; x < 16; x++)
             {
                 uint32_t tile_id = tile_map[y][x];
                 m4 model = glmth_m4_init_id();
-                model = glmth_translate(model, glmth_v3_init(start + (size * x), start + (size * y), 0.0f));
+                model = glmth_translate(model, glmth_v3_init(start + ((size + 1.0f) * x), start + ((size + 1.0f) * y), 0.0f));
                 model = glmth_scale(model, glmth_v3_init(size, size, 1.0f));
 
                 shader_setm4(&game_state->star_shader, "model", &model);
@@ -264,12 +273,11 @@ void game_update_and_render(struct GameState *game_state, float dt, v2u framebuf
                 }
                 else
                 {
-                    color = glmth_v3_init(1.0f, 0.0f, 0.0f);
+                    //color = glmth_v3_init(1.0f, 0.0f, 0.0f);
                 }
                 shader_setv3(&game_state->star_shader, "color", &color);
 
-                m4 projection = glmth_m4_init_id();
-                projection = glmth_projection_ortho(0.0f, screen_width, screen_height, 0.0f, -1.0f, 1.0f);
+                m4 projection = glmth_projection_ortho(0.0f, screen_width, screen_height, 0.0f, -1.0f, 0.0f);
                 shader_setm4(&game_state->star_shader, "projection", &projection);
 
                 glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);