add sdl_ui

2 files changed, 96 insertions, 0 deletions

diff --git a/frontend/sdl/block.bmp b/frontend/sdl/block.bmp
new file mode 100644
index 0000000..48f351c
--- /dev/null
+++ b/frontend/sdl/block.bmp
diff --git a/frontend/sdl/sdl_ui.c b/frontend/sdl/sdl_ui.c
new file mode 100644
index 0000000..012255a
--- /dev/null
+++ b/frontend/sdl/sdl_ui.c
@@ -0,0 +1,96 @@
+#include <SDL2/SDL.h>
+
+#include "cetris.h"
+
+#define W 360 
+#define H 640 
+
+struct cetris_game g;
+
+SDL_Renderer* render;
+SDL_Texture*  block;
+SDL_Event e;
+
+typedef struct {
+  int r;
+  int g;
+  int b;
+} sdl_color;
+
+sdl_color colors[8] = {
+  {0, 0, 0},     // Black
+  {127,219,255}, // Aqua
+  {61,153,112},  // Olive
+  {177,13,201},  // Purple
+  {240,18,190},  // Fuchsia
+  {255,133,27},  // Orange
+  {0,31,63},     // Navy
+  {255,220,0}    // Yellow 
+};
+
+void setup() {
+  SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO);
+  SDL_Window* win = SDL_CreateWindow("Cetris", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, W, H, SDL_WINDOW_SHOWN);
+  render = SDL_CreateRenderer(win, -1, SDL_RENDERER_PRESENTVSYNC);  
+  if (!render) exit(fprintf(stderr, "[Error] Could not create SDL renderer\n")); 
+  SDL_Surface* s = SDL_LoadBMP("block.bmp");
+  block = SDL_CreateTextureFromSurface(render, s);
+  SDL_FreeSurface(s);
+}
+
+void draw_stuff() {
+  SDL_RenderClear(render);
+
+  SDL_SetRenderDrawColor(render, 255, 255, 255, 124);
+  for (int x = 0; x < BOARD_X + 1; x++) {
+    SDL_RenderDrawLine(render, 1 + (x * 25), 1, 1 + (x * 25), 500);
+  }
+  for (int y = 0; y < BOARD_Y - BOARD_VISABLE + 1; y++) {
+    SDL_RenderDrawLine(render, 1, 1 + (y * 25), 250, 1 + (y * 25));
+  }
+  SDL_SetRenderDrawColor(render, 0, 0, 0, 255);
+
+  sdl_color c;
+  SDL_Rect r = {0, 0, 25, 25};
+  for (int x = 0; x < BOARD_X; x++) {
+    for (int y = BOARD_VISABLE; y < BOARD_Y; y++) {
+      if (g.board[x][y].occupied) {
+        c = colors[g.board[x][y].c];
+        SDL_SetTextureColorMod(block, c.r, c.g, c.b);
+        r.x = x * 25;
+        r.y = (y - BOARD_VISABLE) * 25;
+        SDL_RenderCopy(render, block, NULL, &r);
+      }
+    }
+  }
+  SDL_RenderPresent(render);
+}
+
+int main(void) {
+  init_game(&g);
+  setup();
+  for(;;) {
+    while(SDL_PollEvent(&e)) {
+      switch (e.type) {
+        case SDL_QUIT:
+          exit(0);
+        case SDL_KEYDOWN:
+          switch (e.key.keysym.sym) {
+            case SDLK_LEFT:
+              move_left(&g); break;
+            case SDLK_RIGHT:
+              move_right(&g); break;
+            case SDLK_DOWN:
+              move_down(&g); break;
+            case SDLK_SPACE:
+              move_hard_drop(&g); break;
+            case SDLK_UP:
+              rotate_clockwise(&g); break;
+          }
+      }
+    }
+    update_game_tick(&g);
+    draw_stuff();
+    SDL_Delay(1000 / CETRIS_HZ);
+  }
+}