1 files changed, 0 insertions, 204 deletions
diff --git a/src/systems/terrain.c b/src/systems/terrain.c
deleted file mode 100644
index 069000e..0000000
--- a/src/systems/terrain.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/**
- * @brief
- */
-#include "terrain.h"
-#include <assert.h>
-#include "file.h"
-#include "glad/glad.h"
-#include "log.h"
-#include "maths.h"
-#include "mem.h"
-#include "ral_common.h"
-#include "ral_impl.h"
-#include "ral_types.h"
-#include "render.h"
-#include "shader_layouts.h"
-#include "str.h"
-
-#define TERRAIN_GRID_U 505
-#define TERRAIN_GRID_V 505
-
-bool Terrain_Init(Terrain_Storage* storage) {
-  storage->grid_dimensions = u32x2(TERRAIN_GRID_U, TERRAIN_GRID_V);
-  storage->hmap_loaded = false;
-
-  GPU_RenderpassDesc rpass_desc = {
-    .default_framebuffer = true,
-  };
-  storage->hmap_renderpass = GPU_Renderpass_Create(rpass_desc);
-
-  arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024);
-
-  Str8 vert_path = str8("assets/shaders/terrain.vert");
-  Str8 frag_path = str8("assets/shaders/terrain.frag");
-  str8_opt vertex_shader = str8_from_file(&scratch, vert_path);
-  str8_opt fragment_shader = str8_from_file(&scratch, frag_path);
-  if (!vertex_shader.has_value || !fragment_shader.has_value) {
-    ERROR_EXIT("Failed to load shaders from disk")
-  }
-
-  ShaderDataLayout camera_data = Binding_Camera_GetLayout(NULL);
-  ShaderDataLayout terrain_data = TerrainUniforms_GetLayout(NULL);
-
-  GraphicsPipelineDesc pipeline_desc = {
-    .debug_name = "terrain rendering pipeline",
-    .vertex_desc = static_3d_vertex_description(),
-    .data_layouts = { camera_data, terrain_data },
-    .data_layouts_count = 2,
-    .vs = {
-      .debug_name = "terrain vertex shader",
-      .filepath = vert_path,
-      .code = vertex_shader.contents,
-    },
-    .fs = {
-      .debug_name = "terrain fragment shader",
-      .filepath = frag_path,
-      .code = fragment_shader.contents,
-    },
-    .wireframe = false,
-  };
-  storage->hmap_pipeline = GPU_GraphicsPipeline_Create(pipeline_desc, storage->hmap_renderpass);
-
-  storage->texture = TextureLoadFromFile("assets/demo/textures/grass2.png");
-
-  return true;
-}
-
-void Terrain_Shutdown(Terrain_Storage* storage) {}
-
-void Terrain_LoadHeightmap(Terrain_Storage* storage, Heightmap hmap, f32 grid_scale,
-                           bool free_on_upload) {
-  // If there's a current one we will delete it and reallocate buffers
-  if (storage->hmap_loaded) {
-    GPU_BufferDestroy(storage->vertex_buffer);
-    GPU_BufferDestroy(storage->index_buffer);
-  }
-
-  u32 width = hmap.pixel_dimensions.x;
-  u32 height = hmap.pixel_dimensions.y;
-  storage->grid_scale = grid_scale;
-
-  size_t num_vertices = storage->grid_dimensions.x * storage->grid_dimensions.y;
-  storage->num_vertices = num_vertices;
-
-  Vertex_darray* vertices = Vertex_darray_new(num_vertices);
-  u32 index = 0;
-  for (u32 i = 0; i < storage->grid_dimensions.x; i++) {
-    for (u32 j = 0; j < storage->grid_dimensions.y; j++) {
-      size_t position = j * storage->grid_dimensions.x + i;
-      u8* bytes = hmap.image_data;
-      u8 channel = bytes[position];
-      float value = (float)channel / 255.0;
-      // printf("(%d, %d) %d : %f \n", i, j, channel, value);
-
-      assert(index < num_vertices);
-      f32 height = Heightmap_HeightXZ(&hmap, i, j);
-      Vec3 v_pos = vec3_create(i * grid_scale, height, j * grid_scale);
-      Vec3 v_normal = VEC3_Y;
-      float tiling_factor = 505.0f;
-      Vec2 v_uv = vec2((f32)i / width * tiling_factor, (f32)j / height * tiling_factor);
-      Vertex v = { .static_3d = { .position = v_pos, .normal = v_normal, .tex_coords = v_uv } };
-      Vertex_darray_push(vertices, v);
-      index++;
-    }
-  }
-  BufferHandle vertices_handle = GPU_BufferCreate(num_vertices * sizeof(Vertex), BUFFER_VERTEX,
-                                                  BUFFER_FLAG_GPU, vertices->data);
-  storage->vertex_buffer = vertices_handle;
-
-  u32 quad_count = (width - 1) * (height - 1);
-  u32 indices_count = quad_count * 6;
-  storage->indices_count = indices_count;
-  u32_darray* indices = u32_darray_new(indices_count);
-  for (u32 i = 0; i < (width - 1); i++) {     // row
-    for (u32 j = 0; j < (height - 1); j++) {  // col
-      u32 bot_left = i * width + j;
-      u32 top_left = (i + 1) * width + j;
-      u32 top_right = (i + 1) * width + (j + 1);
-      u32 bot_right = i * width + j + 1;
-
-      // top left tri
-      u32_darray_push(indices, top_right);
-      u32_darray_push(indices, top_left);
-      u32_darray_push(indices, bot_left);
-
-      // bottom right tri
-      u32_darray_push(indices, bot_right);
-      u32_darray_push(indices, top_right);
-      u32_darray_push(indices, bot_left);
-    }
-  }
-
-  BufferHandle indices_handle =
-      GPU_BufferCreate(indices_count * sizeof(u32), BUFFER_INDEX, BUFFER_FLAG_GPU, indices->data);
-  storage->index_buffer = indices_handle;
-}
-
-Heightmap Heightmap_FromImage(Str8 filepath) {
-  size_t max_size = MB(16);
-  arena arena = arena_create(malloc(max_size), max_size);
-  // str8_opt maybe_file = str8_from_file(&arena, filepath);
-  // assert(maybe_file.has_value);
-
-  TextureData hmap_tex = TextureDataLoad(Str8_to_cstr(&arena, filepath), false);
-
-  // arena_free_storage(&arena);
-
-  return (Heightmap){
-    .pixel_dimensions = hmap_tex.description.extents,
-    .filepath = filepath,
-    .image_data = hmap_tex.image_data,
-    .num_channels = hmap_tex.description.num_channels,
-    .is_uploaded = false,
-  };
-}
-
-void Terrain_Draw(Terrain_Storage* storage) {
-  GPU_CmdEncoder* enc = GPU_GetDefaultEncoder();
-  GPU_EncodeBindPipeline(enc, storage->hmap_pipeline);
-  RenderScene* scene = Render_GetScene();
-
-  Mat4 view, proj;
-  u32x2 dimensions = GPU_Swapchain_GetDimensions();
-  Camera_ViewProj(&scene->camera, (f32)dimensions.x, (f32)dimensions.y, &view, &proj);
-  Binding_Camera camera_data = { .view = view,
-                                 .projection = proj,
-                                 .viewPos = vec4(scene->camera.position.x, scene->camera.position.y,
-                                                 scene->camera.position.z, 1.0) };
-  GPU_EncodeBindShaderData(enc, 0, Binding_Camera_GetLayout(&camera_data));
-
-  TerrainUniforms uniforms = { .tex_slot_1 = storage->texture };
-  ShaderDataLayout terrain_data = TerrainUniforms_GetLayout(&uniforms);
-  GPU_EncodeBindShaderData(enc, 1, terrain_data);
-
-  GPU_EncodeSetVertexBuffer(enc, storage->vertex_buffer);
-  GPU_EncodeSetIndexBuffer(enc, storage->index_buffer);
-
-  GPU_EncodeDrawIndexedTris(enc, storage->indices_count);
-  // glDrawArrays(GL_POINTS, 0, storage->num_vertices);
-}
-
-f32 Heightmap_HeightXZ(const Heightmap* hmap, u32 x, u32 z) {
-  // its single channel so only one byte per pixel
-  size_t position = x * hmap->pixel_dimensions.x + z;
-  u8* bytes = hmap->image_data;
-  u8 channel = bytes[position];
-  float value = (float)channel / 2.0;  /// 255.0;
-  return value;
-}
-
-ShaderDataLayout TerrainUniforms_GetLayout(void* data) {
-  TerrainUniforms* d = data;
-  bool has_data = data != NULL;
-
-  ShaderBinding b1 = {
-    .label = "TextureSlot1",
-    .kind = BINDING_TEXTURE,
-    .vis = VISIBILITY_FRAGMENT,
-  };
-
-  if (has_data) {
-    b1.data.texture.handle = d->tex_slot_1;
-  }
-  return (ShaderDataLayout){ .bindings = { b1 }, .binding_count = 1 };
-}