projectile collisions

player can be hit by projectiles now.

.gitignore

@@ -1 +1,2 @@
 build/
+.ctagsdb

src/global.c

@@ -37,4 +37,10 @@ void init_global() {
 	global.fairies = NULL;
 	
 	global.frames = 0;
+	global.game_over = 0;
+}
+
+void game_over() {
+	global.game_over = 1;
+	printf("Game Over!");
 }

src/global.h

@@ -54,10 +54,13 @@ typedef struct {
 		Texture projwave;
 		Texture water;
 	} textures;
+	
+	int game_over;
 } Global;
 
 extern Global global;
 
 void init_global();
+void game_over();
 
 #endif

src/player.c

@@ -55,7 +55,7 @@ void player_draw(Player* plr) {
 
 void player_logic(Player* plr) {
 	if(plr->fire && !(global.frames % 4)) {
-		create_projectile(plr->x-10, plr->y, 20, 0, simple, &_projs.youmu, ((Color){1,1,1}));
-		create_projectile(plr->x+10, plr->y, 20, 0, simple, &_projs.youmu, ((Color){1,1,1}));
+		create_projectile(plr->x-10, plr->y-20, 20, 0, simple, &_projs.youmu, ((Color){1,1,1}));
+		create_projectile(plr->x+10, plr->y-20, 20, 0, simple, &_projs.youmu, ((Color){1,1,1}));
 	}
 }

src/projectile.c

@@ -118,13 +118,28 @@ void free_projectiles() {
 	global.projs = NULL;
 }
 
+int test_collision(Projectile *p) {
+	float angle = atan((float)(global.plr.y - p->y)/(global.plr.x - p->x));
+	
+	int projr = sqrt(pow(p->tex->w/4*cos(angle),2)*8/10 + pow(p->tex->h/2*sin(angle)*8/10,2));
+	
+	if(sqrt(pow(p->x-global.plr.x,2) + pow(p->y-global.plr.y,2)) < projr+5)
+		return 1;
+	return 0;
+}
+
+
 void process_projectiles() {
 	Projectile *proj = global.projs, *del = NULL;
 	while(proj != NULL) {
 		proj->rule(proj);
 		
-		if(proj->x < 0 || proj->x > VIEWPORT_W || proj->y < 0 || proj->y > VIEWPORT_H)
+		if(proj->x + proj->tex->w/2 < 0 || proj->x - proj->tex->w/2 > VIEWPORT_W
+			|| proj->y + proj->tex->h/2 < 0 || proj->y - proj->tex->h/2 > VIEWPORT_H)
 			del = proj;
+		
+		if(test_collision(proj))
+			game_over();
 		proj = proj->next;
 	}
 	

src/projectile.h

@@ -70,6 +70,7 @@ void delete_projectile(Projectile *proj);
 void draw_projectile(Projectile *proj);
 void free_projectiles();
 
+int test_collision(Projectile *p);
 void process_projectiles();
 
 void simple(Projectile *p);

src/stage.c

@@ -41,6 +41,9 @@ void stage_input() {
 					break;
 				case SDLK_ESCAPE:
 					exit(1);
+					break;
+				default:
+					break;
 			}
 		} else if(event.type == SDL_KEYUP) {
 			switch(event.key.keysym.sym) {
@@ -50,6 +53,8 @@ void stage_input() {
 				case SDLK_y:
 					global.plr.fire = False;
 					break;
+				default:
+					break;
 			}
 		} else if(event.type == SDL_QUIT) {
 			exit(1);

src/stages/stage0.c

@@ -33,7 +33,8 @@ void simpleFairy(Fairy *f) {
 			for(a = 120; a <= 220; a += 10)
 				create_projectile(f->x, f->y, 2, a, simple, &_projs.rice, ((Color){0,0,1}));
 	}
-	
+	f->moving = 1;
+	f->dir = 1;
 	f->x += 1;
 }
 
@@ -88,7 +89,7 @@ void stage0_events() {
 		case 200:
 			break;
 		case 250:
-			create_projectile(500, 0, 1, 220, simple, &_projs.bigball, ((Color){1,0,0}));
+			create_projectile(200, 200, 0, 220, simple, &_projs.bigball, ((Color){1,0,0}));
 	}
 }
 
@@ -100,7 +101,7 @@ void stage0_loop() {
 	glFogf(GL_FOG_MODE, GL_EXP);
 	glFogf(GL_FOG_DENSITY, 0.005);
 	
-	while(1) {
+	while(!global.game_over) {
 		stage_logic();
 		stage_input();
 		stage0_events();