Start of map rendering.

src/system/atlas.c

@@ -50,8 +50,7 @@ Atlas *getImageFromAtlas(char *filename)
 		}
 	}
 	
-	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "No such atlas image '%s'", filename);
+	return NULL;
-	exit(1);
 }
 
 static void loadAtlasTexture(void)

src/test/atlasTest.c

@@ -22,9 +22,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 static void logic(void);
 static void draw(void);
-
+static int timeout;
-static Atlas *testImage;
+static void trackRandomEntity(void);
-static Texture *atlasTexture;
 
 void initAtlasTest(void)
 {
@@ -34,20 +33,39 @@ void initAtlasTest(void)
 	app.delegate.logic = &logic;
 	app.delegate.draw = &draw;
 	
-	testImage = getImageFromAtlas("gfx/sprites/evilblobs/machineGunBlobRight1.png");
-	
-	atlasTexture = getTexture("gfx/atlas/atlas.png");
-	
-	loadMapData("data/maps/raw/beachApproach.raw");
-	
 	loadWorld("data/maps/beachApproach.json");
+	
+	initMap();
+	
+	timeout = FPS * 2;
+	
+	cameraTrack((Entity*)world.bob);
 }
 
 static void logic(void)
 {
+	if (--timeout <= 0)
+	{
+		trackRandomEntity();
+	}
 }
 
 static void draw(void)
 {
-	blitRect(atlasTexture->texture, 0, 0, &testImage->rect, 0);
+	drawMap();
+}
+
+static void trackRandomEntity(void)
+{
+	Entity *e;
+	
+	for (e = world.entityHead.next ; e != NULL ; e = e->next)
+	{
+		if (rand() % 4 == 0)
+		{
+			cameraTrack(e);
+			timeout = FPS * 2;
+			return;
+		}
+	}
 }

src/test/atlasTest.h

@@ -24,8 +24,12 @@ extern Atlas *getImageFromAtlas(char *filename);
 extern Texture *getTexture(const char *filename);
 extern void blitRect(SDL_Texture *texture, int x, int y, SDL_Rect *srcRect, int center);
 extern void loadMapData(char *filename);
-extern void initGame(void);
+extern void initMap(void);
 extern void initHub(void);
+extern void initGame(void);
 extern void loadWorld(char *filename);
+extern void drawMap(void);
+extern void cameraTrack(Entity *e);
 
 extern App app;
+extern World world;

src/world/map.c

@@ -20,7 +20,17 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "map.h"
 
+static void loadMapData(void);
+static void loadCommonTiles(void);
+static void loadTileset(void);
+static void loadDecals(void);
+static SDL_Rect *loadTile(char *filename);
+
 static int animTimer;
+static int MAX_Y;
+static Texture *atlasTexture;
+static SDL_Rect *tiles[MAP_TILE_MAX];
+static SDL_Rect *decals[8];
 
 void initMap(void)
 {
@@ -32,6 +42,82 @@ void initMap(void)
 	world.map.bounds.h = 0;
 	
 	animTimer = 0;
+	
+	atlasTexture = getTexture("gfx/atlas/atlas.png");
+	
+	loadMapData();
+	
+	loadCommonTiles();
+	
+	loadTileset();
+	
+	loadDecals();
+}
+
+void drawMap(void)
+{
+	int mx, x1, x2, my, y1, y2, tile, decal, x, y;
+	
+	mx = camera.x / MAP_TILE_SIZE;
+	x1 = (camera.x % MAP_TILE_SIZE) * -1;
+	x2 = x1 + RENDER_WIDTH * MAP_TILE_SIZE + (x1 == 0 ? 0 : MAP_TILE_SIZE);
+
+	my = camera.y / MAP_TILE_SIZE;
+	y1 = (camera.y % MAP_TILE_SIZE) * -1;
+	y2 = y1 + RENDER_HEIGHT * MAP_TILE_SIZE + (y1 == 0 ? 0 : MAP_TILE_SIZE);
+
+	tile = 0;
+	decal = 0;
+
+	for (x = x1; x < x2; x += MAP_TILE_SIZE)
+	{
+		for (y = y1; y < y2; y += MAP_TILE_SIZE)
+		{
+			if (mx < MAP_WIDTH && my < MAP_HEIGHT && my <= MAX_Y)
+			{
+				tile = world.map.data[mx][my];
+
+				if (animTimer == 0)
+				{
+					if (tile >= MAP_TILE_ANIMATED_WATER && tile < MAP_TILE_ANIMATED_SLIME)
+					{
+						world.map.data[mx][my] = tile = rrnd(MAP_TILE_ANIMATED_WATER, MAP_TILE_ANIMATED_SLIME - 1);
+					}
+
+					if (tile >= MAP_TILE_ANIMATED_SLIME && tile < MAP_TILE_ANIMATED_LAVA)
+					{
+						world.map.data[mx][my] = tile = rrnd(MAP_TILE_ANIMATED_SLIME, MAP_TILE_ANIMATED_LAVA - 1);
+					}
+
+					if (tile >= MAP_TILE_ANIMATED_LAVA && tile < MAP_TILE_OUTSIDE)
+					{
+						world.map.data[mx][my] = tile = rrnd(MAP_TILE_ANIMATED_LAVA, MAP_TILE_OUTSIDE - 1);
+					}
+				}
+
+				if (tile != MAP_TILE_AIR)
+				{
+					blitRect(atlasTexture->texture, x, y, tiles[tile], 0);
+
+					decal = world.map.decal[mx][my];
+
+					if (decal != 0)
+					{
+						blitRect(atlasTexture->texture, x, y, decals[decal - 1], 0);
+					}
+				}
+			}
+			else
+			{
+				blitRect(atlasTexture->texture, x, y, tiles[MAP_TILE_OUTSIDE], 0);
+			}
+
+			my++;
+		}
+
+		my = camera.y / MAP_TILE_SIZE;
+		mx++;
+	}
 }
 
 void animateMap(void)
@@ -146,13 +232,32 @@ static void calculateMapBounds(void)
 	world.map.bounds.h += MAP_TILE_SIZE;
 	
 	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG, "Map bounds [%d, %d, %d, %d]", world.map.bounds.x, world.map.bounds.y, world.map.bounds.w, world.map.bounds.h);
+	
+	MAX_Y = 0;
+
+	for (y = 0; y < MAP_HEIGHT; y++)
+	{
+		for (x = 0; x < MAP_WIDTH; x++)
+		{
+			if (world.map.data[x][y] != 0)
+			{
+				if (y > MAX_Y)
+				{
+					MAX_Y = y;
+				}
+			}
+		}
+	}
 }
 
-void loadMapData(char *filename)
+static void loadMapData(void)
 {
+	char filename[MAX_FILENAME_LENGTH];
 	char *data, *p;
 	int i, x, y;
 	
+	sprintf(filename, "data/maps/raw/%s.raw", world.id);
+	
 	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, "Loading %s", filename);
 	
 	data = readFile(filename);
@@ -195,3 +300,52 @@ void loadMapData(char *filename)
 	
 	calculateMapBounds();
 }
+
+static void loadCommonTiles(void)
+{
+	int i;
+	char filename[MAX_FILENAME_LENGTH];
+	
+	tiles[1] = loadTile("gfx/tiles/common/1.png");
+	tiles[2] = loadTile("gfx/tiles/common/2.png");
+	tiles[3] = loadTile("gfx/tiles/common/3.png");
+
+	for (i = MAP_TILE_ANIMATED_WATER ; i < MAP_TILE_MAX ; i++)
+	{
+		sprintf(filename, "gfx/tiles/common/%d.png", i);
+		tiles[i] = loadTile(filename);
+	}
+}
+
+static void loadTileset(void)
+{
+	int i;
+	char filename[MAX_FILENAME_LENGTH];
+	
+	for (i = MAP_TILE_SOLID ; i < MAP_TILE_ANIMATED_WATER ; i++)
+	{
+		sprintf(filename, "gfx/tiles/%s/%d.png", world.tileset, i);
+		
+		tiles[i] = loadTile(filename);
+	}
+}
+
+static SDL_Rect *loadTile(char *filename)
+{
+	return &getImageFromAtlas(filename)->rect;
+}
+
+static void loadDecals(void)
+{
+	int i;
+	char filename[MAX_FILENAME_LENGTH];
+	
+	for (i = 0 ; i < 4 ; i++)
+	{
+		sprintf(filename, "gfx/decals/blood%d.png", (i + 1));
+		decals[i] = loadTile(filename);
+		
+		sprintf(filename, "gfx/decals/scorch%d.png", (i + 1));
+		decals[i + 4] = loadTile(filename);
+	}
+}

src/world/map.h

@@ -26,5 +26,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern float limit(float i, float a, float b);
 extern int rrnd(int low, int high);
 extern char *readFile(const char *filename);
+extern Atlas *getImageFromAtlas(char *filename);
+extern Texture *getTexture(const char *filename);
+extern void blitRect(SDL_Texture *texture, int x, int y, SDL_Rect *srcRect, int center);
 
+extern Camera camera;
 extern World world;

src/world/worldLoader.c

@@ -134,6 +134,8 @@ static void loadBob(cJSON *root)
 	b->facing = lookup(cJSON_GetObjectItem(root, "facing")->valuestring);
 	
 	initBob(b);
+	
+	world.bob = b;
 }
 
 static void loadEntities(cJSON *root)