Add bomb crates

Changelog:
- Crates can spawn bombs
- bombs does nothing now

scenes/editor_scene.c

@@ -21,10 +21,11 @@ enum EntitySpawnSelection {
     SPAWN_CRATE_ARROW_R,
     SPAWN_CRATE_ARROW_U,
     SPAWN_CRATE_ARROW_D,
+    SPAWN_CRATE_BOMB,
     SPAWN_BOULDER,
 };
 
-#define MAX_SPAWN_TYPE 11
+#define MAX_SPAWN_TYPE 12
 static unsigned int current_spawn_selection = 0;
 static bool metal_toggle = false;
 
@@ -195,6 +196,9 @@ static void level_scene_render_func(Scene_t* scene)
                                     BLACK
                                 );
                             break;
+                            case CONTAINER_BOMB:
+                                DrawCircleV(Vector2Add(p_ct->position, p_bbox->half_size), p_bbox->half_size.x, BLACK);
+                            break;
                             default:
                             break;
                         }
@@ -287,7 +291,7 @@ static void level_scene_render_func(Scene_t* scene)
         const Color crate_colour = metal_toggle ? GRAY : BROWN;
         const Color draw_colour[MAX_SPAWN_TYPE] = {
             BLACK, MAROON, ORANGE, ColorAlpha(RAYWHITE, 0.5), ColorAlpha(BLUE, 0.5),
-            crate_colour, crate_colour, crate_colour, crate_colour, crate_colour,
+            crate_colour, crate_colour, crate_colour, crate_colour, crate_colour, crate_colour,
             ColorAlpha(RAYWHITE, 0.5)
         };
         for (uint8_t i = 0; i < MAX_SPAWN_TYPE; ++i)
@@ -340,6 +344,9 @@ static void level_scene_render_func(Scene_t* scene)
                             BLACK
                         );
                     break;
+                    case SPAWN_CRATE_BOMB:
+                        DrawCircleV(Vector2Add(draw_pos, half_size), half_size.x, BLACK);
+                    break;
                 }
             }
             draw_pos.x += SELECTION_TILE_SIZE;
@@ -396,6 +403,9 @@ static void level_scene_render_func(Scene_t* scene)
                     BLACK
                 );
             break;
+            case SPAWN_CRATE_BOMB:
+                DrawCircleV(Vector2Add(draw_pos, half_size), half_size.x, BLACK);
+            break;
         }
 
         // For DEBUG
@@ -520,6 +530,9 @@ static void toggle_block_system(Scene_t* scene)
             case SPAWN_CRATE_ARROW_D:
                 spawn_crate(scene, tile_idx, metal_toggle, CONTAINER_DOWN_ARROW);
             break;
+            case SPAWN_CRATE_BOMB:
+                spawn_crate(scene, tile_idx, metal_toggle, CONTAINER_BOMB);
+            break;
             }
             change_a_tile(&tilemap, tile_idx, new_type);
             last_tile_idx = tile_idx;

scenes/ent_impl.h

@@ -8,7 +8,7 @@ typedef enum EntityTag {
     ENEMY_ENT_TAG,
     CRATES_ENT_TAG,
     BOULDER_ENT_TAG,
-    ARROW_ENT_TAG,
+    DESTRUCTABLE_ENT_TAG,
 } EntityTag_t;
 
 
@@ -17,5 +17,6 @@ Entity_t* create_player(EntityManager_t* ent_manager, Assets_t* assets);
 Entity_t* create_crate(EntityManager_t* ent_manager, Assets_t* assets, bool metal, ContainerItem_t item);
 Entity_t* create_boulder(EntityManager_t* ent_manager, Assets_t* assets);
 Entity_t* create_arrow(EntityManager_t* ent_manager, Assets_t* assets, uint8_t dir);
+Entity_t* create_bomb(EntityManager_t* ent_manager, Assets_t* assets, Vector2 launch_dir);
 
 #endif // __ENT_IMPL_H

scenes/game_systems.c

@@ -1114,6 +1114,12 @@ void global_external_forces_system(Scene_t* scene)
             continue;
         }
 
+        Vector2 half_size = {0, 0};
+        if (p_bbox != NULL)
+        {
+            half_size = p_bbox->half_size;
+        }
+
         if (!(p_mstate->ground_state & 1))
         {
             // Only apply upthrust if center is in water
@@ -1121,8 +1127,8 @@ void global_external_forces_system(Scene_t* scene)
             if (p_mstate->water_state & 1)
             {
                 unsigned int tile_idx = get_tile_idx(
-                    p_ctransform->position.x + p_bbox->half_size.x,
+                    p_ctransform->position.x + half_size.x,
-                    p_ctransform->position.y + p_bbox->half_size.y,
+                    p_ctransform->position.y + half_size.y,
                     data->tilemap.width
                 );
 
@@ -1140,6 +1146,8 @@ void global_external_forces_system(Scene_t* scene)
             Vector2Multiply(p_ctransform->fric_coeff, p_ctransform->velocity)
         );
         
+        if (p_bbox == NULL) continue; //Do not proceed if no bbox
+
 
         // Zero out acceleration for contacts with sturdy entites and tiles
         uint8_t edges = check_bbox_edges(
@@ -1707,7 +1715,6 @@ void hitbox_update_system(Scene_t* scene)
                         if (p_other_hurtbox == NULL) continue;
                         CTransform_t* p_other_ct = get_component(p_other_ent, CTRANSFORM_COMP_T);
                         Vector2 hurtbox_pos = Vector2Add(p_other_ct->position, p_other_hurtbox->offset);
-                        if (p_hitbox->atk <= p_other_hurtbox->def) continue;
 
                         if (
                             find_AABB_overlap(
@@ -1715,6 +1722,8 @@ void hitbox_update_system(Scene_t* scene)
                                 hurtbox_pos, p_other_hurtbox->size, &overlap
                             )
                         )
+                        {
+                            if (p_hitbox->atk > p_other_hurtbox->def)
                             {
                                 if (p_other_ent->m_tag == CRATES_ENT_TAG)
                                 {
@@ -1737,6 +1746,7 @@ void hitbox_update_system(Scene_t* scene)
                                     }
                                 }
                                 remove_entity_from_tilemap(&scene->ent_manager, &tilemap, p_other_ent);
+                            }
 
                             if (p_hitbox->one_hit)
                             {
@@ -1816,6 +1826,9 @@ void container_destroy_system(Scene_t* scene)
                 case CONTAINER_DOWN_ARROW:
                     new_ent = create_arrow(&scene->ent_manager, &scene->engine->assets, 3);
                 break;
+                case CONTAINER_BOMB:
+                    new_ent = create_bomb(&scene->ent_manager, &scene->engine->assets, (Vector2){0, -1});
+                break;
                 default:
                     new_ent = NULL;
                 break;

scenes/items_ent.c

@@ -1,5 +1,6 @@
 #include "ent_impl.h"
 #include "constants.h"
+#include "raymath.h"
 
 Entity_t* create_crate(EntityManager_t* ent_manager, Assets_t* assets, bool metal, ContainerItem_t item)
 {
@@ -51,7 +52,7 @@ Entity_t* create_boulder(EntityManager_t* ent_manager, Assets_t* assets)
 
 Entity_t* create_arrow(EntityManager_t* ent_manager, Assets_t* assets, uint8_t dir)
 {
-    Entity_t* p_arrow = add_entity(ent_manager, ARROW_ENT_TAG);
+    Entity_t* p_arrow = add_entity(ent_manager, DESTRUCTABLE_ENT_TAG);
     add_component(p_arrow, CTILECOORD_COMP_T);
     CHitBoxes_t* p_hitbox = add_component(p_arrow, CHITBOXES_T);
     p_hitbox->n_boxes = 1;
@@ -86,3 +87,23 @@ Entity_t* create_arrow(EntityManager_t* ent_manager, Assets_t* assets, uint8_t d
 
     return p_arrow;
 }
+
+Entity_t* create_bomb(EntityManager_t* ent_manager, Assets_t* assets, Vector2 launch_dir)
+{
+    Entity_t* p_bomb = add_entity(ent_manager, DESTRUCTABLE_ENT_TAG);
+    add_component(p_bomb, CTILECOORD_COMP_T);
+    add_component(p_bomb, CMOVEMENTSTATE_T);
+    CHitBoxes_t* p_hitbox = add_component(p_bomb, CHITBOXES_T);
+    p_hitbox->n_boxes = 1;
+    p_hitbox->boxes[0] = (Rectangle){0, 0, TILE_SIZE, TILE_SIZE};
+
+    p_hitbox->atk = 0;
+    p_hitbox->one_hit = true;
+
+    CTransform_t* p_ctransform = add_component(p_bomb, CTRANSFORM_COMP_T);
+    p_ctransform->active = true; 
+    p_ctransform->movement_mode = REGULAR_MOVEMENT;
+
+    p_ctransform->velocity = Vector2Scale(Vector2Normalize(launch_dir), 500);
+    return p_bomb;
+}