From 3457570fb677f84f48b3ad6cbd963b45df9baabf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <tastyfish@seznam.cz>
Date: Sat, 8 Sep 2018 14:55:14 +0200
Subject: [PATCH] Move more stuff to general

---
 demo1.cpp   | 67 +++++++++------------------------------------
 general.hpp | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+), 54 deletions(-)

diff --git a/demo1.cpp b/demo1.cpp
index 8af5fdd..6a2ecd8 100644
--- a/demo1.cpp
+++ b/demo1.cpp
@@ -9,15 +9,18 @@
 
 #include "general.hpp"
 
-#define SPRITES 3
-#define SPRITE_MAX_DISTANCE 5 * UNITS_PER_SQUARE
-
 #define SUBSAMPLE 2
 #define SUBSAMPLED_WIDTH (SCREEN_WIDTH / SUBSAMPLE)
 
 #define LEVEL_X_RES 29
 #define LEVEL_Y_RES 21
 
+Player player;
+
+#define SPRITES 3
+#define SPRITE_MAX_DISTANCE 5 * UNITS_PER_SQUARE
+Sprite sprites[SPRITES];
+
 const unsigned char levelTexture[] =
 {
    1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 3, 3, 2, 2, 2, 2, 
@@ -563,36 +566,6 @@ const unsigned char sprite2[] =
 
 const unsigned char *textures[] = {texture1, texture2, texture3, texture4};
 
-class Sprite
-{
-public:
-  const unsigned char *mImage;
-  Vector2D mPosition;
-  Unit mHeight;
-  Unit mPixelSize;
-};
-
-class Character
-{
-public:
-  Camera mCamera;
-  Unit mVericalSpeed;
-
-  Character()
-  {
-    mCamera.position.x = 23295;//UNITS_PER_SQUARE * 1;
-    mCamera.position.y = 14593;//UNITS_PER_SQUARE * 5;
-    mCamera.direction = -3350;//200;
-    mCamera.height = UNITS_PER_SQUARE * 3;
-    mCamera.resolution.x = 110 / SUBSAMPLE;
-    mCamera.resolution.y = 88;
-    mCamera.shear = 0;
-    mVericalSpeed = 0;
-  }
-};
-
-Character player;
-Sprite sprites[SPRITES];
 
 Unit textureAt(int16_t x, int16_t y)
 {
@@ -663,8 +636,6 @@ inline void pixelFunc(PixelInfo pixel)
   *buf = c;
 }
 
-unsigned short pal[256];
-
 void draw()
 {
   RayConstraints c;
@@ -712,29 +683,17 @@ pokitto.display.print(player.mCamera.direction);
 
 int main()
 {
-  #define placeSprite(S,I,X,Y,Z,P)\
-    sprites[I].mImage = S;\
-    sprites[I].mPosition.x = X * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2;\
-    sprites[I].mPosition.y = Y * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2;\
-    sprites[I].mHeight = Z * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2;\
-    sprites[I].mPixelSize = P;
-
-  placeSprite(sprite1,0,10,5,1,100)
-  placeSprite(sprite1,1,14,5,1,100)
-  placeSprite(sprite2,2,15,19,1,200)
-
-  #undef placeSprite
-
   pokitto.begin();
+  initPalette();
 
-  for (uint8_t r = 0; r < 8; ++r)
-    for (uint8_t g = 0; g < 8; ++g)
-      for (uint8_t b = 0; b < 4; ++b)
-        pal[rgbToIndex(r,g,b)] = pokitto.display.RGBto565(36 * r, 36 * g, 85 * b);
+  player.setPositionSquare(4,5);
+
+  sprites[0] = Sprite(sprite1,10,5,1,100);
+  sprites[1] = Sprite(sprite1,14,5,1,100);
+  sprites[2] = Sprite(sprite1,15,19,1,100);
 
-  pokitto.display.load565Palette(&pal[0]); // load a palette the same way as any other palette in any other screen mode
   pokitto.display.persistence = 1;
-  pokitto.setFrameRate(30);
+  pokitto.setFrameRate(FPS);
   pokitto.display.setFont(fontTiny);
 
   while (pokitto.isRunning())
diff --git a/general.hpp b/general.hpp
index ae77c2f..48ddfaf 100644
--- a/general.hpp
+++ b/general.hpp
@@ -17,6 +17,10 @@
 
 Pokitto::Core pokitto;
 
+#ifndef FPS
+#define FPS 30
+#endif
+
 #define SCREEN_WIDTH 110
 #define SCREEN_HEIGHT 88
 
@@ -33,6 +37,8 @@ Pokitto::Core pokitto;
 
 Unit zBuffer[SUBSAMPLED_WIDTH]; ///< 1D z-buffer for visibility determination.
 
+unsigned short palette[256];
+
 /**
   Gets (the index of) color by specified RGB components. 
 
@@ -46,6 +52,20 @@ inline uint8_t rgbToIndex(uint8_t r, uint8_t g, uint8_t b)
   return (r & 0b00000111) | ((g & 0b00000111) << 3) | ((b & 0b00000011) << 6);
 }
 
+/**
+  Inits and loads a general 256 color palette.
+*/
+void initPalette()
+{
+  for (uint8_t r = 0; r < 8; ++r)
+    for (uint8_t g = 0; g < 8; ++g)
+      for (uint8_t b = 0; b < 4; ++b)
+        palette[rgbToIndex(r,g,b)] =
+          pokitto.display.RGBto565(36 * r, 36 * g, 85 * b);
+
+  pokitto.display.load565Palette(palette);
+}
+
 /**
   Adds given intensity to a color.
 
@@ -131,4 +151,62 @@ void inline drawSprite(const unsigned char *sprite, int16_t x, int16_t y, Unit d
   }
 }
 
+class Player
+{
+public:
+  Camera mCamera;
+  Unit mVericalSpeed;
+
+  Player()
+  {
+    mCamera.position.x = 0;
+    mCamera.position.y = 0;
+    mCamera.direction = 0;
+    mCamera.height = UNITS_PER_SQUARE * 3;
+    mCamera.resolution.x = SCREEN_WIDTH / SUBSAMPLE;
+    mCamera.resolution.y = SCREEN_HEIGHT;
+    mCamera.shear = 0;
+    mVericalSpeed = 0;
+  }
+
+  void setPosition(Unit x, Unit y)
+  {
+    mCamera.position.x = x;
+    mCamera.position.y = y;
+  }
+
+  void setPositionSquare(int16_t squareX, int16_t squareY)
+  {
+    setPosition(
+      squareX * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2,
+      squareY * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2);
+  }
+};
+
+class Sprite
+{
+public:
+  Sprite(const unsigned char *image, int16_t squareX, int16_t squareY, Unit z,
+    Unit pixelSize):
+    mImage(image),
+    mPixelSize(pixelSize)
+  {
+    mPosition.x = squareX * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2;
+    mPosition.y = squareY * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2;
+    mHeight = z * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2;
+  }
+
+  Sprite():
+    mImage(0), mHeight(0), mPixelSize(1)
+  {
+    mPosition.x = 0;
+    mPosition.y = 0;
+  }
+
+  const unsigned char *mImage;
+  Vector2D mPosition;
+  Unit mHeight;
+  Unit mPixelSize;
+};
+
 #endif