Init

README

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+WIP Pokitto raycasting demo
+
+raycastinglib is needed (can be found among my repos) - simply drop the .h file in the same directory as the program and compile.

game.cpp

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+/**
+  WIP raycasting demo for Pokitto.
+
+  author: Miloslav "drummyfish" Ciz
+  license: CC0
+ */
+
+#define POK_SIM
+
+#include <stdio.h>
+#include "raycastlib.h"
+#include "Pokitto.h"
+#include <stdlib.h>
+
+class Level
+{
+public:
+  int16_t getHeight(int16_t x, int16_t y)
+  {
+    if (x > 12 || y > 12)
+      return x * y;
+
+    return (x < 0 || y < 0 || x > 9 || y > 9) ? 1 : 0;
+  }
+};
+
+class Character
+{
+public:
+  Camera mCamera;
+
+  Character()
+  {
+    mCamera.position.x = 400;
+    mCamera.position.y = 6811;
+    mCamera.direction = 660;
+    mCamera.fovAngle = UNITS_PER_SQUARE / 4;
+    mCamera.height = UNITS_PER_SQUARE / 2;
+    mCamera.resolution.x = 55;
+    mCamera.resolution.y = 88;
+  } 
+};
+
+Pokitto::Core p;
+Character player;
+Level level;
+
+int16_t heightFunc(int16_t x, int16_t y)
+{
+  return level.getHeight(x,y);
+}
+
+void pixelFunc(PixelInfo pixel)
+{
+  p.display.color = pixel.hit.direction + 4;
+  p.display.drawPixel(pixel.position.x * 2,pixel.position.y);
+  p.display.drawPixel(pixel.position.x * 2 + 1,pixel.position.y);
+}
+
+void draw()
+{
+  RayConstraints c;
+
+  c.maxHits = 1;
+  c.maxSteps = 32;
+
+  render(player.mCamera,heightFunc,pixelFunc,c);
+}
+
+int main()
+{
+  p.begin();
+  p.setFrameRate(60);
+
+  p.display.setFont(fontTiny);
+
+  while (p.isRunning())
+  {
+    if (p.update())
+    {
+      draw();
+
+      const int16_t step = 50;
+      const int16_t step2 = 10;
+
+      Vector2D d = angleToDirection(player.mCamera.direction);
+
+      d.x = (d.x * step) / UNITS_PER_SQUARE;
+      d.y = (d.y * step) / UNITS_PER_SQUARE;
+
+      if (p.upBtn())
+      {
+        player.mCamera.position.x += d.x;
+        player.mCamera.position.y += d.y;
+      }
+      else if (p.downBtn())
+      {
+        player.mCamera.position.x -= d.x;
+        player.mCamera.position.y -= d.y;
+      }
+
+      if (p.rightBtn())
+        player.mCamera.direction += step2;
+      else if (p.leftBtn())
+        player.mCamera.direction -= step2;
+
+      player.mCamera.position.x = clamp(player.mCamera.position.x,UNITS_PER_SQUARE / 2,10 * UNITS_PER_SQUARE - UNITS_PER_SQUARE / 2);
+      player.mCamera.position.y = clamp(player.mCamera.position.y,UNITS_PER_SQUARE / 2,10 * UNITS_PER_SQUARE - UNITS_PER_SQUARE / 2);
+    }
+  }
+
+  return 0;
+}