added alpha blending for scene components, global pointer for scene data, include file for the intro scene, etc

.gitignore

@@ -0,0 +1,5 @@
+# ignore compiled objects
+/*.o
+
+# ignore the test executable
+/game

Engine.c

@@ -15,6 +15,7 @@
 #include "TextBox.h"
 #include "Kaos.h"
 #include "HyperKaos.h"
+#include "Scene.h"
 #include "extern.h"
 
 //
@@ -207,12 +208,13 @@ int init(int argc, char* args[])
   hero = newPlayer("assets/img/characters/kmage.png", 160, 90);
 
 
-  mapData = (Room**)malloc(64*sizeof(Room*));
-  mapBuffer= (Room**)malloc(64*sizeof(Room*));
-  dialogueData = (TextBox**)malloc(124*sizeof(Room*));
-  bgmData = (Mix_Music**)malloc(4*sizeof(Mix_Music*));
-  sfxData = (Mix_Chunk**)malloc(24*sizeof(Mix_Chunk*));
-  kaosData = (Kaos**)malloc(124*sizeof(Kaos*));
+  mapData = malloc(64*sizeof(Room*));
+  mapBuffer= malloc(64*sizeof(Room*));
+  dialogueData = malloc(124*sizeof(Room*));
+  bgmData = malloc(8*sizeof(Mix_Music*));
+  sfxData = malloc(24*sizeof(Mix_Chunk*));
+  kaosData = malloc(124*sizeof(Kaos*));
+  theatre = malloc(8*sizeof(Scene*));
   printf("Init complete\n");
   return 1;
 }
@@ -261,6 +263,8 @@ void cleanup()
   free(bgmData);
   free(sfxData);
 
+  free(theatre);
+
   SDL_FreeSurface(textBoxBG);
   SDL_FreeSurface(nextArrow);
   SDL_FreeSurface(saveMenu);

HyperKaos.c

@@ -11,6 +11,7 @@ typedef struct room Room;
 typedef struct player Player;
 typedef struct timer Timer;
 typedef struct textBox TextBox;
+typedef struct scene Scene;
 
 #include "extern.h"
 

Kaos.c

@@ -11,6 +11,7 @@
 #include "Player.h"
 #include "Room.h"
 #include "HyperKaos.h"
+#include "Scene.h"
 
 #include "extern.h"
 

Makefile

@@ -4,7 +4,10 @@ CFLAGS= -Wall -I/usr/include/SDL -L/usr/lib/ -lSDL -lSDL_image -lSDL_ttf -lSDL_m
 
 all: game
 
-game: main.c Player.o Engine.o Timer.o Room.o WorldData.o TextBox.o Kaos.o HyperKaos.o
+scenetest: sceneTest.c Scene.o Engine.o Timer.o Player.o Room.o WorldData.o Kaos.o HyperKaos.o TextBox.o
+	$(CC) -o $@ $^ $(CFLAGS)
+
+game: main.c Player.o Engine.o Timer.o Room.o WorldData.o TextBox.o Kaos.o HyperKaos.o Scene.o
 	$(CC) -o $@ $^ $(CFLAGS)
 
 cleanobj:

Player.c

@@ -14,6 +14,7 @@ typedef struct TTF_Font TTF_Font;
 typedef struct timer Timer;
 typedef struct textBox TextBox;
 typedef struct kaos Kaos;
+typedef struct scene Scene;
 #include "extern.h"
 
 Player* newPlayer(char* filename, int a, int b)

Room.c

@@ -13,6 +13,7 @@
 
 typedef struct timer Timer;
 typedef struct textBox TextBox;
+typedef struct scene Scene;
 #include "extern.h"
 
 Room* newRoom(char* filename, int a)

Scene.c

@@ -15,11 +15,11 @@ typedef struct room Room;
 typedef struct player Player;
 #include "extern.h"
 
-SLayer* newSLayer(char* filename, int x, int y, int h, int v)
+SLayer* newSLayer(SDL_Surface* img, int x, int y, int h, int v, int alpha)
 {
   SLayer* self = malloc(sizeof(SLayer));
 
-  self->sprite = loadImage(filename);
+  self->sprite = img;
   self->x = x;
   self->y = y;
   self->h = h;
@@ -28,6 +28,9 @@ SLayer* newSLayer(char* filename, int x, int y, int h, int v)
   self->oX = x;
   self->oY = y;
 
+  if (alpha != 255)
+    SDL_SetAlpha(self->sprite, SDL_SRCALPHA|SDL_RLEACCEL, alpha);
+
   return self;
 }
 
@@ -55,13 +58,14 @@ void buildScene(Scene* self, SLayer* sprite)
   SLayer** temp;
   if (self->nSprites)
     temp = self->sprites;
-  self->sprites = malloc((self->nSprites+1)*sizeof(SLayer));
+  self->sprites = malloc((self->nSprites+1)*sizeof(SLayer*));
   if (self->nSprites)
   {
     for (i = 0; i < self->nSprites; i++)
       self->sprites[i] = temp[i];
   }
-  self->sprites[self->nSprites++] = sprite;
+  self->sprites[self->nSprites] = sprite;
+  self->nSprites++;
 }
 
 void playScene(Scene* self)

Scene.h

@@ -21,7 +21,7 @@ typedef struct scene
   Transition fade;
 } Scene;
 
-SLayer* newSLayer(char* filename, int x, int y, int h, int v);
+SLayer* newSLayer(SDL_Surface* img, int x, int y, int h, int v, int alpha);
 void deleteSLayer(SLayer* target);
 
 Scene* newScene(int in, int out, int time, SDL_Color incolor, SDL_Color outcolor);

TextBox.c

@@ -7,22 +7,11 @@
 #include "Player.h"
 #include "TextBox.h"
 
-extern int quit;
-extern int playing;
-extern int actionbutton;
+typedef struct room Room;
+typedef struct kaos Kaos;
+typedef struct scene Scene;
 
-extern SDL_Event event;
-extern SDL_Surface* screen;
-extern Timer fps;
-
-extern SDL_Rect* textScroller;
-extern SDL_Surface* textBoxBG;
-extern SDL_Surface* nextArrow;
-
-extern TTF_Font* font;
-extern SDL_Color textColor;
-
-extern Player* hero;
+#include "extern.h"
 
 TextBox* newTextBox()
 {

WorldData.c

@@ -11,6 +11,7 @@
 #include "Kaos.h"
 #include "HyperKaos.h"
 #include "TextBox.h"
+#include "Scene.h"
 
 typedef struct timer Timer;
 #include "extern.h"

enum.h

@@ -1,5 +1,3 @@
-#define CHUNKS_H
-
 enum dataChunks
 {
   LEVEL1 = 1,

extern.h

@@ -38,4 +38,4 @@ extern TextBox** dialogueData;
 extern Mix_Music** bgmData;
 extern Mix_Chunk** sfxData;
 extern Kaos** kaosData;
-
+extern Scene** theatre;

intro.c

@@ -0,0 +1,25 @@
+
+  SDL_Color black = {0,0,0};
+
+  SLayer* nebula = newSLayer(loadImage("assets/img/backgrounds/presents.png"), 0,0,0,0,255);
+  SLayer* fogF = newSLayer(loadImage("assets/img/fx/fog.png"), 0,0,-1,0,128);
+  SLayer* fogB = newSLayer(loadImage("assets/img/fx/plasma.png"), -320,0,1,0,56);
+  SLayer* presents = newSLayer(TTF_RenderText_Solid(font, "nilFM presents", textColor), 120,84,0,0,128);
+
+  SLayer* menuTransition = newSLayer(loadImage("assets/img/backgrounds/mainmenu.png"),0,0,0,0,255);
+
+  Scene* intro = newScene(30,30, 200, black, black);
+  Scene* transition = newScene(30,0,30, black, black);
+
+  buildScene(intro, nebula);
+  buildScene(intro, fogB);
+  buildScene(intro, fogF);
+  buildScene(intro, presents);
+
+  buildScene(transition, menuTransition);
+
+  playScene(intro);
+  playScene(transition);
+
+  deleteScene(intro);
+  deleteScene(transition);

main.c

@@ -55,6 +55,7 @@ TextBox** dialogueData = NULL;
 Mix_Music** bgmData = NULL;
 Mix_Chunk** sfxData = NULL;
 Kaos** kaosData = NULL;
+Scene** theatre = NULL;
 
 int kaosFlag = -1;
 
@@ -69,17 +70,12 @@ int main (int argc, char* args[])
     return 1;
   }
 
-  SDL_Color black = {0,0,0};
-  SLayer* presents = newSLayer("assets/img/backgrounds/presents.png", 0,0,0,0);
-  SLayer* menuTransition = newSLayer("assets/img/backgrounds/mainmenu.png",0,0,0,0);
-  Scene* intro = newScene(30,30, 90, black, black);
-  Scene* transition = newScene(30,0,30, black, black);
-  buildScene(intro, presents);
-  buildScene(transition, menuTransition);
-  playScene(intro);
-  playScene(transition);
-  deleteScene(intro);
-  deleteScene(transition);
+  /*
+   * intro discarded immediately after playing, so instead of increasing the
+   * complexity and offloading it somewhere, we just keep it in this include
+   * file for cleanliness and modularity
+   */
+  #include "intro.c"
 
   // main game loop
   while (!quit)