Merge pull request #52 from heavydemon21/dev

multiple bullets and bg collisions.

1 files changed, 67 insertions, 21 deletions

diff --git a/src/engine/bullet.c b/src/engine/bullet.c
index e6ca6df..55b20cc 100644
--- a/src/engine/bullet.c
+++ b/src/engine/bullet.c
@@ -1,35 +1,81 @@
 #include "bullet.h"
+int bullets_size=0;
+static int current_bullet=0;
 
-
-
-// TODO: use hh_entity as bullet struct
-void hh_shoot_bullet(vec2 player, vec_cor cam_pos, hh_entity* bullet){
+hh_entity* all_bullets=NULL;
+hh_entity* hh_init_bullets(int size) {
+    if (all_bullets != NULL) {
+        free(all_bullets);
+    }
+    bullets_size = size;
+    all_bullets = malloc(size * sizeof(hh_entity));
+    hh_entity bullet = {
+        .speed = 1,
+        .is_grounded = true,
+        .is_hit = false,
+        .radius = 4,
+        .pos = (vec2){-16,-16},
+        .vel = (vec2){0,0},
+        .size = (vec2) { 13,16},
+        .render = {
+            .frame0 = 84,
+            .palette = 3,
+            .fam = (hh_s_ppu_loc_fam_entry){
+                .horizontal_flip = false,
+                .vertical_flip = false,
+                .palette_index = 7,
+                .tilemap_index = 84,
+            }
+        }
+    };
+    for (int i = 0; i < size; i++) {
+        all_bullets[i] = bullet;
+    }
+    return all_bullets;
+}
+bool rising_edge(bool signal, bool* prev) {
+    bool edge = false;
+    if (signal && !(*prev)) {
+        edge = true;
+    }
+    *prev = signal;
+    return edge;
+}
+bool prev_signal = false;
+void hh_shoot_bullet(vec2 player, hh_entity* bullet){
 	vec2 temp;
-	if(g_hh_controller_p1.button_secondary){
-		if(bullet->is_grounded){
+	if(rising_edge(g_hh_controller_p1.button_secondary,&prev_signal) && bullet->is_grounded){
 			bullet->is_grounded=false;
 			bullet->pos = player;
-		}
+			current_bullet = (current_bullet + 1) % bullets_size;
+	}
+
+}
+
+void hh_update_bullet(hh_entity* bullet){
+	if(hh_background_collision_bulllet(*bullet)){
+		hh_bullet_death(bullet);
+
+		// printf("x %d y %d\n",(bullet->pos.x-cam_pos.x),(bullet->pos.y-cam_pos.y));
 	}
 	else{
-		if(!bullet->is_grounded){
-			hh_update_bullet(bullet , cam_pos);
-			hh_draw_bullet(*bullet);
-		}
+		bullet->pos.x += bullet->speed;	
 	}
-	
 
 }
 
-void hh_update_bullet(hh_entity* bullet, vec_cor cam_pos){
-	bullet->pos.x += 1;
-
-	// update bullet sprite on ppu
-	bullet->render.fam.position_x = (bullet->pos.x-cam_pos.x);
-	bullet->render.fam.position_y = (bullet->pos.y-cam_pos.y);
+void hh_multiple_bullets(vec2 player, hh_entity* bullets){
 
+	hh_shoot_bullet(player, &bullets[current_bullet]);
+	for(int i=0; i < bullets_size;i++){
+		if(!bullets[i].is_grounded){
+			hh_update_bullet(&bullets[i]);
+		}
+	}
 }
-void hh_draw_bullet(hh_entity bullet){
-	hh_s_ppu_loc_fam_entry temp = bullet.render.fam;
-	hh_ppu_update_foreground(10,temp);
+
+void hh_bullet_death(hh_entity* bullet){
+	bullet->is_grounded=true;
+	bullet->pos.x= -16;
+	bullet->pos.y= -16;
 }