a-game

commit 60ee00d688fed2cd31d3f2abfc27a3793479776c
parent 220d6eb74ed72e1d61516179925403b91aba4c35
Author: Amin Mesbah <dev@aminmesbah.com>
Date:   Tue,  2 Apr 2019 23:31:34 -0700

Scale player dimensions based on meter size

Diffstat:
M
src/game.c
 | 
16
+++++++++++++++-

1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/src/game.c b/src/game.c
@@ -113,6 +113,7 @@ void game_update_and_render(struct GameState *game_state, f32 dt, v2u framebuffe
     // In Knytt, the player is a 9 by 14 pixels and a tile is 24 by 24 pixels
     // TODO: Use world coordinates for everything other than rendering
 
+    f32 meter_size = 0.0f;
     // render tiles
     {
         glBindVertexArray(game_state->tiles.vao);
@@ -138,6 +139,7 @@ void game_update_and_render(struct GameState *game_state, f32 dt, v2u framebuffe
         {
             tile_size = ((f32)screen.height) / (f32)ROOM_TILE_DIM_Y;
         }
+        meter_size = tile_size;
 
         v2 tilemap = (v2) {
             tile_size * (f32)ROOM_TILE_DIM_X,
@@ -209,7 +211,19 @@ void game_update_and_render(struct GameState *game_state, f32 dt, v2u framebuffe
         glBindVertexArray(game_state->tiles.vao);
         m4 model = glmth_m4_init_id();
         model = glmth_translate(model, (v3) { player.pos.x, player.pos.y, 0.0f });
-        model = glmth_scale(model, (v3) { 9.0f, 14.0f, 1.0f });
+        // these dimensions are relative to a square 'meter', one tile
+        v2 player_dim = (v2) { 0.375f, 0.583f };
+
+        v2 player_render_dim = (v2) {
+            player_dim.x * meter_size,
+            player_dim.y * meter_size,
+        };
+
+        model = glmth_scale(model, (v3) {
+            player_render_dim.x,
+            player_render_dim.y,
+            1.0f
+        });
         shader_setm4(&game_state->tiles.shader, "model", &model);
         v3 color = (v3) { 1.0f, 0.0f, 1.0f };
         shader_setv3(&game_state->tiles.shader, "color", &color);