Render entities.

common.mk

@@ -33,7 +33,7 @@ OBJS += atlas.o atlasTest.o aquaBlob.o
 OBJS += battery.o blaze.o bob.o boss.o blobBoss.o
 OBJS += camera.o cannon.o cardReader.o cell.o cherry.o combat.o consumable.o
 OBJS += debris.o destructable.o door.o draw.o
-OBJS += effects.o entities.o entityFactory.o exit.o explosions.o eyeDroid.o eyeDroidCommander.o evilBlob.o
+OBJS += effects.o entities.o entity.o entityFactory.o exit.o explosions.o eyeDroid.o eyeDroidCommander.o evilBlob.o
 OBJS += fleshChunk.o frost.o
 OBJS += game.o grenade.o
 OBJS += heart.o horizontalDoor.o horizontalLaserTrap.o hub.o hud.o

src/entities/blobs/bob.c

@@ -20,6 +20,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "bob.h"
 
+static void load(cJSON *root);
+static void save(cJSON *root);
+
 void initBob(void)
 {
 	Unit *u;
@@ -27,6 +30,13 @@ void initBob(void)
 	u = createUnit();
 	
 	u->type = ET_BOB;
+	
+	u->sprite[FACING_LEFT] = getSprite("BobLeft");
+	u->sprite[FACING_RIGHT] = getSprite("BobRight");
+	u->sprite[FACING_DIE] = getSprite("BobSpin");
+	
+	u->load = load;
+	u->save = save;
 }
 
 void addBobItem(Item *i)
@@ -38,3 +48,18 @@ int numCarriedItems(void)
 {
 	return 0;
 }
+
+static void load(cJSON *root)
+{
+	world.bob->x = cJSON_GetObjectItem(root, "x")->valueint;
+	world.bob->y = cJSON_GetObjectItem(root, "y")->valueint;
+	world.bob->facing = lookup(cJSON_GetObjectItem(root, "facing")->valuestring);
+}
+
+static void save(cJSON *root)
+{
+	cJSON_AddStringToObject(root, "type", "Bob");
+	cJSON_AddNumberToObject(root, "x", world.bob->x);
+	cJSON_AddNumberToObject(root, "y", world.bob->y);
+	cJSON_AddStringToObject(root, "facing", getLookupName("FACING_", world.bob->facing));
+}

src/entities/blobs/bob.h

@@ -19,5 +19,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Unit *createUnit(void);
+extern Sprite *getSprite(char *name);
+extern char *getLookupName(const char *prefix, long num);
+extern long lookup(const char *name);
+
+extern World world;

src/entities/entity.c

@@ -18,7 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "entities.h"
+#include "entity.h"
 
 void animateEntity(void);
 static void applyDamage(int damage);

src/entities/items/item.c

@@ -37,8 +37,6 @@ Entity *createItem(void)
 	
 	i = malloc(sizeof(Item));
 	memset(i, 0, sizeof(Item));
-	world.entityTail->next = (Entity*)i;
-	world.entityTail = (Entity*)i;
 	
 	initEntity((Entity*)i);
 	

src/entities/structures/pushBlock.c

@@ -36,6 +36,8 @@ Entity *initPushBlock(void)
 
 	s->startX = s->startY = -1;
 	
+	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSprite("Crate1");
+
 	s->flags |= EF_EXPLODES | EF_ALWAYS_PROCESS;
 	
 	s->activate = activate;

src/entities/structures/pushBlock.h

@@ -24,5 +24,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern void playSound(int snd, int ch);
 extern void addTeleportStars(Entity *e);
 extern Structure *createStructure(void);
+extern Sprite *getSprite(char *name);
 
 extern Entity *self;

src/entities/structures/structures.c

@@ -26,8 +26,6 @@ Structure *createStructure(void)
 	
 	s = malloc(sizeof(Structure));
 	memset(s, 0, sizeof(Structure));
-	world.entityTail->next = (Entity*)s;
-	world.entityTail = (Entity*)s;
 	
 	initEntity((Entity*)s);
 	

src/entities/structures/teleporter.c

@@ -34,6 +34,8 @@ Entity *initTeleporter(void)
 	
 	s->type = ET_TELEPORTER;
 	
+	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSprite("TeleporterActive");
+	
 	s->flags |= EF_WEIGHTLESS | EF_NO_CLIP | EF_IGNORE_BULLETS | EF_NO_TELEPORT;
 
 	s->plane = PLANE_FOREGROUND;

src/entities/structures/teleporter.h

@@ -28,5 +28,6 @@ extern void observeActivation(Entity *e);
 extern int isOnScreen(Entity *e);
 extern void setGameplayMessage(int type, char *format, ...);
 extern Structure *createStructure(void);
+extern Sprite *getSprite(char *name);
 
 extern Entity *self;

src/entities/unit.c

@@ -33,11 +33,11 @@ Unit *createUnit(void)
 	
 	u = malloc(sizeof(Unit));
 	memset(u, 0, sizeof(Unit));
-	world.entityTail->next = (Entity*)u;
-	world.entityTail = (Entity*)u;
 	
 	initEntity((Entity*)u);
 	
+	u->type = ET_ENEMY;
+	
 	u->oxygen = MAX_OXYGEN;
 
 	u->canCarryItem = rand() % 100 < 85;

src/structs.h

@@ -382,7 +382,7 @@ struct Sprite {
 	char name[MAX_NAME_LENGTH];
 	int *times;
 	char **filenames;
-	SDL_Rect *frames;
+	Atlas **frames;
 	int currentFrame;
 	float currentTime;
 	int w;

src/system/sprites.c

@@ -80,7 +80,7 @@ static void animateSprite(Sprite *s)
 
 SDL_Rect getCurrentFrame(Sprite *s)
 {
-	return s->frames[s->currentFrame];
+	return s->frames[s->currentFrame]->rect;
 }
 
 static void loadGameSprites(void)
@@ -144,6 +144,7 @@ void loadSprite(cJSON *root)
 	
 	s->times = malloc(sizeof(int) * s->numFrames);
 	s->filenames = malloc(sizeof(char*) * s->numFrames);
+	s->frames = malloc(sizeof(Atlas*) * s->numFrames);
 	
 	i = 0;
 	
@@ -156,6 +157,8 @@ void loadSprite(cJSON *root)
 			filename = cJSON_GetObjectItem(frame, "content")->valuestring;
 			s->filenames[i] = malloc(strlen(filename) + 1);
 			STRNCPY(s->filenames[i], filename, strlen(filename));
+			
+			s->frames[i] = getImageFromAtlas(filename);
 		}
 		
 		i++;

src/system/sprites.h

@@ -24,3 +24,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern float wrap(float value, float low, float high);
 extern char *readFile(const char *filename);
 char **getFileList(const char *dir, int *count);
+extern Atlas *getImageFromAtlas(char *filename);

src/test/atlasTest.c

@@ -37,6 +37,8 @@ void initAtlasTest(void)
 	
 	initMap();
 	
+	initEntities();
+	
 	timeout = FPS * 2;
 	
 	cameraTrack((Entity*)world.bob);
@@ -53,6 +55,8 @@ static void logic(void)
 static void draw(void)
 {
 	drawMap();
+	
+	drawEntities();
 }
 
 static void trackRandomEntity(void)

src/test/atlasTest.h

@@ -27,8 +27,10 @@ extern void loadMapData(char *filename);
 extern void initMap(void);
 extern void initHub(void);
 extern void initGame(void);
+extern void initEntities(void);
 extern void loadWorld(char *filename);
 extern void drawMap(void);
+extern void drawEntities(void);
 extern void cameraTrack(Entity *e);
 
 extern App app;

src/world/entities.c

@@ -0,0 +1,42 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "entities.h"
+
+static Texture *atlasTexture;
+
+void initEntities(void)
+{
+	atlasTexture = getTexture("gfx/atlas/atlas.png");
+}
+
+void drawEntities(void)
+{
+	Entity *e;
+	int x, y;
+	
+	for (e = world.entityHead.next ; e != NULL ; e = e->next)
+	{
+		x = (-camera.x + e->x);
+		y = (-camera.y + e->y);
+		
+		blitRect(atlasTexture->texture, x, y, &e->sprite[0]->frames[0]->rect, 0);
+	}
+}

src/world/entities.h

@@ -0,0 +1,27 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "../common.h"
+
+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

@@ -126,16 +126,9 @@ static void loadSprites(cJSON *root)
 
 static void loadBob(cJSON *root)
 {
-	Bob *b;
+	world.bob = (Bob*)createEntity("Bob");
 	
-	b = (Bob*)createEntity("Bob");
-	b->x = cJSON_GetObjectItem(root, "x")->valueint;
-	b->y = cJSON_GetObjectItem(root, "y")->valueint;
-	b->facing = lookup(cJSON_GetObjectItem(root, "facing")->valuestring);
-	
-	initBob(b);
-	
-	world.bob = b;
+	world.bob->load(root);
 }
 
 static void loadEntities(cJSON *root)