From e5acfb329827802fe2259f91701dc8762c2573b6 Mon Sep 17 00:00:00 2001
From: nathan <nathansmith@disroot.org>
Date: Fri, 8 Aug 2025 12:48:10 -0600
Subject: Mesh instancing test working

---
 src/world.c | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

(limited to 'src/world.c')

diff --git a/src/world.c b/src/world.c
index 828aaa3..a5af6e7 100644
--- a/src/world.c
+++ b/src/world.c
@@ -473,8 +473,28 @@ Seed generateWorldPlants(World* world, Seed seed, int start, int end)
   return seed;
 }
 
-Seed generateWorldUtilityPoles(World* world, Seed seed, int start, int end)
+Seed generateWorldUtilityPoles(World* world, const Assets* assets, Seed seed,
+                               int start, int end)
 {
+  world->utilityPoleTransforms = (Matrix*)FT_CALLOC(WORLD_UTILITY_POLE_COUNT,
+                                                    sizeof(Matrix));
+
+  if (world->utilityPoleTransforms == NULL)
+  {
+    ALLOCATION_ERROR;
+    return seed;
+  }
+
+  // Instancing shader.
+  Shader shader = assets->shaders[INSTANCING_SHADER];
+  shader.locs[SHADER_LOC_MATRIX_MVP] = GetShaderLocation(shader, "mvp");
+  shader.locs[SHADER_LOC_MATRIX_MODEL] = GetShaderLocationAttrib(shader,
+                                                                 "instance");
+  shader.locs[SHADER_LOC_MATRIX_VIEW] = GetShaderLocation(shader, "view");
+  shader.locs[SHADER_LOC_MATRIX_PROJECTION] = GetShaderLocation(shader,
+                                                                "projection");
+  assets->models[UTILITY_POLE_MODEL].materials[0].shader = shader;
+  
   for (int index = start; index < end; ++index)
   {
     FT_RANDOM16(seed);
@@ -523,7 +543,7 @@ Texture generateGroundTexture()
   return texture;
 }
 
-World createWorld(Seed seed)
+World createWorld(Seed seed, const Assets* assets)
 {
   World world;
   world.size = WORLD_SIZE;
@@ -573,7 +593,7 @@ World createWorld(Seed seed)
   // Utility poles.
   start = end;
   end = WORLD_UTILITY_POLE_COUNT + start;
-  seed = generateWorldUtilityPoles(&world, seed, start, end);
+  seed = generateWorldUtilityPoles(&world, assets, seed, start, end);
 
   // Items.
   start = end;
@@ -655,6 +675,7 @@ void freeWorld(World world)
   UnloadTexture(
     world.heightmap.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture);
   UnloadModel(world.heightmap);
+  FT_FREE(world.utilityPoleTransforms);
   freeWorldBVH(world.bvh);
 }
 
-- 
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