(20111219) 01:00

GameLib.c

@@ -18,6 +18,9 @@ int _n_entities_res=0;
 void (*_gameproc)()=NULL;
 void (*_gamepostproc)()=NULL;
 int _ft;
+int _game_size[2];
+int _game_pos[2];
+
 
 /////////////////////////////
 // GameLib_Init
@@ -32,6 +35,11 @@ int GameLib_Init(int w,int h,char *title,int fps){
 	}
 	Audio_Init();
 
+	_game_size[0]=w;
+	_game_size[1]=h;
+	_game_pos[0]=0;
+	_game_pos[1]=0;
+
 	_ft=1000/fps;
 
 	return(1);
@@ -109,8 +117,8 @@ int GameLib_ProcLoop(){
 	}
 
 	// Process entities
-	vec2 grav;
-	vec2_set(grav,0,1);
+//	vec2 grav;
+//	vec2_set(grav,0,1);
 	for(i=0;i<_n_entities;i++){
 		if(!_entity[i])
 			continue;
@@ -127,8 +135,12 @@ int GameLib_ProcLoop(){
 	do{
 		repeat=0;
 		for(i=0;i<_n_entities-1;i++){
+			if(!_entity[i])
+				continue;
+			if(!(_entity[i]->flags&EntityFlag_Collision))
+				continue;
 			for(j=i+1;j<_n_entities;j++){
-				if(!_entity[i] || !_entity[j])
+				if(!_entity[j])
 					continue;
 				if(Entity_Collide(_entity[i],_entity[j])){
 					repeat=1;
@@ -140,8 +152,12 @@ int GameLib_ProcLoop(){
 
 	// Stop remaining collisions
 	for(i=0;i<_n_entities-1;i++){
+		if(!_entity[i])
+			continue;
+		if(!(_entity[i]->flags&EntityFlag_Collision))
+			continue;
 		for(j=i+1;j<_n_entities;j++){
-			if(!_entity[i] || !_entity[j])
+			if(!_entity[j])
 				continue;
 			if(Entity_Collide(_entity[i],_entity[j])){
 				vec2_set(_entity[i]->vel,0,0);
@@ -150,12 +166,17 @@ int GameLib_ProcLoop(){
 		}
 	}
 
-	// PostProcess and draw entities
-	for(i=0;i<_n_entities;i++){
+	// Process Overlaps
+	for(i=0;i<_n_entities-1;i++){
 		if(!_entity[i])
 			continue;
-		Entity_PostProcess(_entity[i],_ft);
-		Entity_Draw(_entity[i]);
+		if(!(_entity[i]->flags&EntityFlag_Overlap))
+			continue;
+		for(j=i+1;j<_n_entities;j++){
+			if(!_entity[j])
+				continue;
+			Entity_Overlaps(_entity[i],_entity[j]);
+		}
 	}
 
 	// Compactate
@@ -169,6 +190,56 @@ int GameLib_ProcLoop(){
 	}
 	_n_entities=j;
 
+	// Sort
+	int n,n2,swap;
+	n=_n_entities;
+	do{
+		n2=0;
+		for(i=1;i<n;i++){
+			swap=0;
+			if(_entity[i-1]->zorder > _entity[i]->zorder){
+				// Lower level
+				swap=1;
+			}else
+			if(_entity[i-1]->zorder < _entity[i]->zorder){
+				// Upper level
+			}else{
+				// Same level
+				if(_entity[i-1]->pos[1] > _entity[i]->pos[1]){
+					swap=1;
+				}
+			}
+			if(swap){
+				Entity *ent;
+				ent=_entity[i];
+				_entity[i]=_entity[i-1];
+				_entity[i-1]=ent;
+				n2=i;
+			}
+		}
+		n=n2;
+	}while(n>0);
+
+	// PostProcess and draw entities
+	for(i=0;i<_n_entities;i++){
+		Entity *e;
+		Entity_PostProcess(_entity[i],_ft);
+		if(!_entity[i])
+			continue;
+
+		e=_entity[i];
+		if(e->pos[0]<(_game_pos[0]-128))
+			continue;
+		if(e->pos[0]>(_game_pos[0]+_game_size[0]+128))
+			continue;
+		if(e->pos[1]<(_game_pos[1]-128))
+			continue;
+		if(e->pos[1]>(_game_pos[1]+_game_size[1]+128))
+			continue;
+
+		Entity_Draw(e,-_game_pos[0],-_game_pos[1]);
+	}
+
 	// Launch the method
 	if(_gamepostproc){
 		_gamepostproc();
@@ -201,3 +272,84 @@ void GameLib_Loop(
 void GameLib_BreakLoop(){
 	_running=0;
 }
+
+
+
+void GameLib_GetPos(int pos[2]){
+	pos[0]=_game_pos[0];
+	pos[1]=_game_pos[1];
+}
+
+void GameLib_SetPos(int pos[2]){
+	_game_pos[0]=pos[0];
+	_game_pos[1]=pos[1];
+}
+
+void GameLib_GetSize(int size[2]){
+	size[0]=_game_size[0];
+	size[1]=_game_size[1];
+}
+
+
+void GameLib_DelEnts(){
+	int i;
+
+	for(i=0;i<_n_entities;i++){
+		if(!_entity[i])
+			continue;
+		Entity_Destroy(_entity[i]);
+	}
+	_n_entities=0;
+}
+
+
+
+void GameLib_ForEachEnt(int (*func)(Entity *ent)){
+	int i;
+	for(i=0;i<_n_entities;i++){
+		if(!_entity[i])
+			continue;
+		if(!func(_entity[i])){
+			break;
+		}
+	}
+}
+
+
+void GameLib_PlaySound(AudioSnd snd,int x,int y){
+	float vleft,vright,vcen;
+	int r,cx,cy,off;
+
+	cx=_game_pos[0]+_game_size[0]/2;
+	cy=_game_pos[1]+_game_size[1]/2;
+	if(_game_size[0]>_game_size[1]){
+		r=_game_size[0]/2;
+	}else{
+		r=_game_size[1]/2;
+	}
+	r=r*1.2f;
+	off=r/10.0f;
+
+	vleft=vright=1.0f;
+
+	vcen=1.0f-(abs(y-cy)/(float)r);
+
+	vright=1.0f-(abs(x-(cx+off))/(float)r);
+	vleft=1.0f-(abs(x-(cx-off))/(float)r);
+
+
+	vright*=vcen;
+	vleft*=vcen;
+
+	if(vleft<0.0f)
+		vleft=0.0f;
+	if(vright<0.0f)
+		vright=0.0f;
+
+	if(vleft<=0.0f && vright<=0.0f){
+		return;
+	}
+
+	Audio_PlaySound(snd,vleft,vright);
+
+}