Initial map interface.

2026-07-16 07:50:01 +02:00
parent 99c32198ec
commit f2110236e3
2 changed files with 98 additions and 8 deletions
@@ -0,0 +1,87 @@
+package game
+
+import "core:math"
+import rl "vendor:raylib"
+
+Tile_Type :: enum {
+	// TEMP light gray
+	FLOOR,
+	// TEMP DARK gray
+	WALL,
+	// TREMP GREEN
+	PICKUP,
+}
+
+Game_Map :: struct {
+	width: int,
+	height: int,
+	tile_size: int,
+	data: [400]int
+}
+
+Grid_Pos :: [2]int
+
+map_init :: proc() -> Game_Map {
+	// @TODO: store maps and load them later
+	// NOTE: flat, row-major — data[row * width + col]
+	map_data := [400]int{
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1,
+		1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1,
+		1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1,
+		1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	}
+
+	return Game_Map{
+		width = 20,
+		height = 20,
+		tile_size = TILE_SIZE,
+		data = map_data,
+	}
+}
+
+world_to_grid :: proc(pixel_pos: rl.Vector2, camera: rl.Camera2D) -> Grid_Pos {
+	grid_space := rl.GetScreenToWorld2D(pixel_pos, camera)
+
+	// @TODO: I wonder if this floor and casting is expensive, look for a smarter way later
+	pos_x := int(math.floor(grid_space.x))
+	pos_y := int(math.floor(grid_space.y))
+
+	return Grid_Pos{pos_x, pos_y}
+}
+
+grid_to_world :: proc(col: int, row: int) -> rl.Vector2 {
+	world_x := f32(col * TILE_SIZE)
+	world_y := f32(row * TILE_SIZE)
+
+	return rl.Vector2{world_x, world_y}
+}
+
+draw_map :: proc(current_map: Game_Map) {
+	for value, index in current_map.data {
+		row := index / current_map.width
+		column := index % current_map.width
+
+		color := rl.LIGHTGRAY
+		if value == 1 do color = rl.DARKGRAY
+		if value == 2 do color = rl.GREEN
+
+		rect := grid_to_world(column, row)
+		rl.DrawRectangle(i32(rect.x), i32(rect.y), TILE_SIZE, TILE_SIZE, color)
+	}
+}