Some house keeping

git-svn-id: https://svn.tlawal.org/svn/ragar@10 618e81bd-0769-42e7-8608-769e73fecc77

src/ragar/ragar_main.c

@@ -6,8 +6,13 @@
 
 #include "base/base_inc.h"
 #include "renderer/display.h"
+#include "renderer/vector.h"
 
 #include "renderer/display.c"
+#include "renderer/vector.c"
+
+Vec3 cube_points[9 * 9 * 9] = {0}; // 9 x 9 x 9 cube
+Vec2 projected_points[9 * 9 * 9];
 
 int is_running;
 
@@ -15,6 +20,23 @@ void setup(void) {
   colour_buffer = (u32 *)malloc(sizeof(u32) * window_width * window_height);
   colour_buffer_texture =
       SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, window_width, window_height);
+
+  // Load vector array
+  int point_count = 0;
+  for (f32 x = -1; x <= 1; x += 0.25) {
+    for (f32 y = -1; y <= 1; y += 0.25) {
+      for (f32 z = -1; z <= 1; z += 0.25) {
+        Vec3 new_point = {.x = x, .y = y, .z = z};
+        cube_points[point_count++] = new_point;
+      }
+    }
+  }
+}
+
+// Orthographic projection
+Vec2 project(Vec3 point) {
+  Vec2 projected_point = {.x = point.x, .y = point.y};
+  return projected_point;
 }
 
 void process_input(void) {
@@ -35,14 +57,21 @@ void process_input(void) {
   }
 }
 
-void update(void) {}
+void update(void) {
+  for (int i = 0; i < (9*9*9); i++) {
+    Vec3 point = cube_points[i];
+    Vec2 projected_point = project(point);
+    projected_points[i] = projected_point;
+  }
+}
 
 void render(void) {
   // FrameMarkStart("render");
+  draw_grid(0xFFFFFFFF);
+  
   SDL_SetRenderDrawColor(renderer, 28, 450, 560, 255);
   SDL_RenderClear(renderer);
 
-  draw_pixel(400, 400, 0xFF839149);
   render_colour_buffer();
   // clear_colour_buffer(0xFF384893);
   clear_colour_buffer(0xFF000000);

src/renderer/display.c

@@ -59,7 +59,7 @@ void draw_dots(u32 colour) {
 void draw_grid(u32 colour) {
   for (s32 column = 0; column < window_height; column++) {
     for (s32 row = 0; row < window_width; row++) {
-      if ((row % 50) == 0 || (column % 100) == 0) {
+      if ((row % 10) == 0 || (column % 100) == 0) {
         colour_buffer[(window_width * column) + row] = colour;
       }
     }