spawn an entity, no movement yet

2026-07-02 00:58:58 -07:00
parent 9a11c98b41
commit c01b320032
4 changed files with 79 additions and 0 deletions
@@ -0,0 +1,54 @@
+package main
+
+import rl "vendor:raylib"
+
+Entity :: distinct u32
+
+Entity_World :: struct {
+	count:       int,
+	active:      [MAX_ENTITIES]bool,
+	position:    [MAX_ENTITIES]Tile_Coord,
+	color:       [MAX_ENTITIES]rl.Color,
+	is_colonist: [MAX_ENTITIES]bool,
+}
+
+entity_world_init :: proc() -> Entity_World {
+	return Entity_World{}
+}
+
+entity_spawn_colonist :: proc(ew: ^Entity_World, pos: Tile_Coord) -> Entity {
+	for i in 0 ..< MAX_ENTITIES {
+		if !ew.active[i] {
+			ew.active[i] = true
+			ew.position[i] = pos
+			ew.color[i] = {80, 140, 220, 225}
+			ew.is_colonist[i] = true
+			ew.count += 1
+			return Entity(u32(i + 1))
+		}
+	}
+
+	return INVALID_ENTITY
+}
+
+entity_index :: proc(e: Entity) -> int {
+	return int(u32(e) - 1)
+}
+
+entity_draw :: proc(ew: ^Entity_World, camera: ^Camera2D) {
+	for i in 0 ..< MAX_ENTITIES {
+		if !ew.active[i] || !ew.is_colonist[i] {
+			continue
+		}
+
+		pos := ew.position[i]
+		wx := f32(pos.x * TILE_SIZE) + f32(TILE_SIZE) * 0.5
+		wy := f32(pos.y * TILE_SIZE) + f32(TILE_SIZE) * 0.5
+		sx, sy := world_to_screen(camera, wx, wy)
+		radius := f32(TILE_SIZE) * 0.3 * camera.zoom
+
+		rl.DrawCircle(i32(sx), i32(sy), radius, ew.color[i])
+		rl.DrawCircleLines(i32(sx), i32(sy), radius, rl.WHITE)
+	}
+}
+