render klotski board

include/config.hpp

@@ -7,8 +7,8 @@ constexpr int WIDTH = 800;
 constexpr int HEIGHT = 800;
 
 constexpr float VERTEX_SIZE = 50.0;
-constexpr Color VERTEX_COLOR = {27, 188, 104, 255};
-constexpr Color EDGE_COLOR = {20, 133, 38, 255};
+constexpr Color VERTEX_COLOR = GREEN;
+constexpr Color EDGE_COLOR = DARKGREEN;
 
 constexpr float SIM_SPEED = 4.0;
 constexpr float ROTATION_SPEED = 1.0;
@@ -18,4 +18,7 @@ constexpr float DEFAULT_SPRING_CONSTANT = 1.5;
 constexpr float DEFAULT_DAMPENING_CONSTANT = 0.1;
 constexpr float DEFAULT_REST_LENGTH = 0.5;
 
+constexpr int BOARD_PADDING = 5;
+constexpr int BLOCK_PADDING = 5;
+
 #endif

include/renderer.hpp

@@ -6,6 +6,7 @@
 #include <raymath.h>
 #include <vector>
 
+#include "klotski.hpp"
 #include "mass_springs.hpp"
 
 using Edge3Set = std::vector<std::pair<Vector3, Vector3>>;
@@ -19,10 +20,12 @@ private:
   int width;
   int height;
   RenderTexture2D render_target;
+  RenderTexture2D klotski_target;
 
 public:
   Renderer(int width, int height) : width(width), height(height) {
     render_target = LoadRenderTexture(width, height);
+    klotski_target = LoadRenderTexture(width, height);
   }
 
   Renderer(const Renderer &copy) = delete;
@@ -30,7 +33,10 @@ public:
   Renderer(Renderer &&move) = delete;
   Renderer &operator=(Renderer &&move) = delete;
 
-  ~Renderer() { UnloadRenderTexture(render_target); }
+  ~Renderer() {
+    UnloadRenderTexture(render_target);
+    UnloadRenderTexture(klotski_target);
+  }
 
 private:
   auto Rotate(const Vector3 &a, const float cos_angle, const float sin_angle)
@@ -49,6 +55,10 @@ public:
 
   auto DrawMassSprings(const Edge2Set &edges, const Vertex2Set &vertices)
       -> void;
+
+  auto DrawKlotski(State &state) -> void;
+
+  auto DrawTextures() -> void;
 };
 
 #endif

src/main.cpp

@@ -1,5 +1,3 @@
-#include "mass_springs.hpp"
-
 #define VERLET_UPDATE
 
 #include <iostream>
@@ -7,6 +5,8 @@
 #include <raymath.h>
 
 #include "config.hpp"
+#include "klotski.hpp"
+#include "mass_springs.hpp"
 #include "renderer.hpp"
 
 auto main(int argc, char *argv[]) -> int {
@@ -21,8 +21,7 @@ auto main(int argc, char *argv[]) -> int {
   SetConfigFlags(FLAG_VSYNC_HINT);
   SetConfigFlags(FLAG_MSAA_4X_HINT);
 
-  InitWindow(WIDTH, HEIGHT, "MassSprings");
-
+  InitWindow(WIDTH * 2, HEIGHT, "MassSprings");
 
   MassSpringSystem mass_springs;
   mass_springs.AddMass(1.0, Vector3(-0.5, 0.5, 0.0), true);
@@ -33,6 +32,18 @@ auto main(int argc, char *argv[]) -> int {
   mass_springs.AddSpring(1, 2, DEFAULT_SPRING_CONSTANT,
                          DEFAULT_DAMPENING_CONSTANT, DEFAULT_REST_LENGTH);
 
+  State s = State(4, 5);
+  Block a = Block(0, 0, 2, 1, false);
+  Block b = Block(0, 1, 1, 3, true);
+  Block c = Block(0, 2, "45");
+  Block d = Block(0, 3, "de");
+
+  s.AddBlock(a);
+  s.AddBlock(b);
+  for (Block block : s) {
+    std::cout << "Block (" << block.x << ", " << block.y << ")" << std::endl;
+  }
+
   Renderer renderer(WIDTH, HEIGHT);
   Edge2Set edges;
   edges.reserve(mass_springs.springs.size());
@@ -55,8 +66,9 @@ auto main(int argc, char *argv[]) -> int {
     renderer.Transform(edges, vertices, mass_springs, abstime * ROTATION_SPEED,
                        CAMERA_DISTANCE);
     renderer.DrawMassSprings(edges, vertices);
+    renderer.DrawKlotski(s); // TODO: Don't need to render each frame
+    renderer.DrawTextures();
 
-    renderer.Draw(viewport);
     abstime += frametime;
   }
 

src/renderer.cpp

@@ -1,7 +1,8 @@
 #include "renderer.hpp"
 
+#include <raylib.h>
+
 #include "config.hpp"
-#include "mass_springs.hpp"
 
 auto Renderer::Rotate(const Vector3 &a, const float cos_angle,
                       const float sin_angle) -> Vector3 {
@@ -63,11 +64,75 @@ auto Renderer::DrawMassSprings(const Edge2Set &edges,
   }
   DrawLine(0, 0, 0, height, BLACK);
   EndTextureMode();
+}
 
+auto Renderer::DrawKlotski(State &state) -> void {
+  BeginTextureMode(klotski_target);
+  ClearBackground(RAYWHITE);
+
+  // Draw Board
+  const int board_width = width - 2 * BOARD_PADDING;
+  const int board_height = height - 2 * BOARD_PADDING;
+  float block_size;
+  float x_offset = 0.0;
+  float y_offset = 0.0;
+  if (state.width > state.height) {
+    block_size =
+        static_cast<float>(board_width) / state.width - 2 * BLOCK_PADDING;
+    y_offset = (board_height - block_size * state.height -
+                BLOCK_PADDING * 2 * state.height) /
+               2.0;
+  } else {
+    block_size =
+        static_cast<float>(board_height) / state.height - 2 * BLOCK_PADDING;
+    x_offset = (board_width - block_size * state.width -
+                BLOCK_PADDING * 2 * state.width) /
+               2.0;
+  }
+
+  DrawRectangle(0, 0, width, height, RAYWHITE);
+  DrawRectangle(x_offset, y_offset,
+                board_width - 2 * x_offset + 2 * BOARD_PADDING,
+                board_height - 2 * y_offset + 2 * BOARD_PADDING, LIGHTGRAY);
+  for (int x = 0; x < state.width; ++x) {
+    for (int y = 0; y < state.height; ++y) {
+      DrawRectangle(x_offset + BOARD_PADDING + x * BLOCK_PADDING * 2 +
+                        BLOCK_PADDING + x * block_size,
+                    y_offset + BOARD_PADDING + y * BLOCK_PADDING * 2 +
+                        BLOCK_PADDING + y * block_size,
+                    block_size, block_size, WHITE);
+    }
+  }
+
+  // Draw Blocks
+  for (Block block : state) {
+    Color c = EDGE_COLOR;
+    if (block.target) {
+      c = RED;
+    }
+    DrawRectangle(x_offset + BOARD_PADDING + block.x * BLOCK_PADDING * 2 +
+                      BLOCK_PADDING + block.x * block_size,
+                  y_offset + BOARD_PADDING + block.y * BLOCK_PADDING * 2 +
+                      BLOCK_PADDING + block.y * block_size,
+                  block.width * block_size + block.width * 2 * BLOCK_PADDING -
+                      2 * BLOCK_PADDING,
+                  block.height * block_size + block.height * 2 * BLOCK_PADDING -
+                      2 * BLOCK_PADDING,
+                  c);
+  }
+
+  DrawLine(width - 1, 0, width - 1, height, BLACK);
+  EndTextureMode();
+}
+
+auto Renderer::DrawTextures() -> void {
   BeginDrawing();
-  DrawTextureRec(render_target.texture,
+  DrawTextureRec(klotski_target.texture,
                  Rectangle(0, 0, (float)width, -(float)height), Vector2(0, 0),
                  WHITE);
-  DrawFPS(10, 10);
+  DrawTextureRec(render_target.texture,
+                 Rectangle(0, 0, (float)width, -(float)height),
+                 Vector2(width, 0), WHITE);
+  DrawFPS(width + 10, 10);
   EndDrawing();
 }