3d

src/entity.odin

@@ -0,0 +1,69 @@
+package main
+
+import hm "core:container/handle_map"
+import rl "vendor:raylib"
+
+MAX_GFX :: 2
+
+Handle :: hm.Handle32
+
+MAX_ENTITIES :: 1024
+
+BaseEntity :: struct {
+	pos:      rl.Vector2,
+	vel:      rl.Vector2,
+	col_size: f32,
+	marked:   bool,
+	gfx:      [MAX_GFX]Graphics,
+}
+
+Actor :: struct {
+	using base: BaseEntity,
+	hp:         i32,
+	max_hp:     i32,
+	speed:      f32,
+}
+
+EntityVariant :: union {
+	Player,
+	Enemy,
+	GroundItem,
+	FX,
+}
+
+Entity :: struct {
+	handle: Handle,
+	v:      EntityVariant,
+}
+
+get_base :: proc(e: ^Entity) -> ^BaseEntity {
+	#partial switch &v in e.v {
+	case Player:
+		return cast(^BaseEntity)&v
+	case Enemy:
+		return cast(^BaseEntity)&v
+	case GroundItem:
+		return cast(^BaseEntity)&v
+	case FX:
+		return cast(^BaseEntity)&v
+	}
+	return nil
+}
+
+get_actor :: proc(e: ^Entity) -> ^Actor {
+	#partial switch &v in e.v {
+	case Player:
+		return &v.actor
+	case Enemy:
+		return &v.actor
+	}
+	return nil
+}
+
+get_player :: proc(state: ^GameState) -> (^Entity, ^Player) {
+	e := get_entity(state, state.player)
+	if e == nil do return nil, nil
+	p, ok := &e.v.(Player)
+	if !ok do return nil, nil
+	return e, p
+}