From e0c53290d7b93adf8ac7562758bdb09cf3d82a8c Mon Sep 17 00:00:00 2001
From: Jason Hilder <jhilder95@gmail.com>
Date: Sun, 26 Jul 2026 21:45:24 +0200
Subject: [PATCH] New debug procs and small clean ups.

---
 src/debug.odin | 111 ++++++++++++++++++++++++++++++++++++++++++++++---
 src/game.odin  |  27 ++++++------
 src/main.odin  |   2 +-
 3 files changed, 122 insertions(+), 18 deletions(-)

diff --git a/src/debug.odin b/src/debug.odin
index db025bf..5f39cdd 100644
--- a/src/debug.odin
+++ b/src/debug.odin
@@ -4,15 +4,16 @@ import rl "vendor:raylib"
 
 Debug :: struct {
 	active: 		  bool,
+    grid_active:      bool,
 	bounds_active: 	  bool,
 	camera_active: 	  bool,
 	camera: 		  rl.Camera2D,
 }
 
-debug_init :: proc(game: ^Game) {
+debug_init :: proc(game: ^Game, camera_enabled: bool) {
 	when DEBUG_MODE {
 		game.debug.active = true
-		game.debug.camera_active = false
+		game.debug.camera_active = camera_enabled
 		game.debug.camera = debug_camera_init(game.player)
 
 		log_info("!! Debug Mode Enabled")
@@ -42,13 +43,14 @@ debug_camera_init :: proc(player: Player) -> rl.Camera2D {
 			target = player.position,
 	    	offset = rl.Vector2{ f32(GAME_WIDTH/2 - offset_adjust), f32(GAME_HEIGHT/2 - offset_adjust) },
 	    	rotation = 0,
-	    	zoom = 0.3
+	    	zoom = 0.35
 		}
 	}
 }
 
 debug_camera_update :: proc(debug: ^Debug) {
 	when DEBUG_MODE {
+        // @TODO: wrap scroll and drag in control key pressed or spacebar
         scroll := rl.GetMouseWheelMove()
         if scroll != 0.0 {
             debug.camera.zoom += scroll *	0.1
@@ -60,13 +62,17 @@ debug_camera_update :: proc(debug: ^Debug) {
             debug.camera.target -= ((mouse_move * sensitivity) / debug.camera.zoom)
         }
 
-		if rl.IsKeyPressed(.ONE) {
+		if rl.IsKeyPressed(.F1) {
 			debug.camera_active = !debug.camera_active
 		}
 
-		if rl.IsKeyPressed(.TWO) {
+		if rl.IsKeyPressed(.F2) {
 			debug.bounds_active = !debug.bounds_active
 		}
+
+		if rl.IsKeyPressed(.F3) {
+            debug.grid_active = !debug.grid_active
+		}
 	}
 }
 
@@ -83,6 +89,100 @@ debug_camera_draw :: proc(camera: ^rl.Camera2D, active: bool) {
 	}
 }
 
+debug_grid_draw :: proc(camera: ^rl.Camera2D, active: bool) {
+	when DEBUG_MODE {
+		if !active {
+			return
+		}
+
+		view_width  := GAME_WIDTH  / camera.zoom
+		view_height := GAME_HEIGHT / camera.zoom
+		top_left := camera.target - rl.Vector2{ f32(view_width)/2, f32(view_height)/2 }
+
+        map_width: i32 = 20
+        map_height: i32 = 20
+
+		// clamp visible range to actual map bounds, in tile coords
+		start_x := max(i32(top_left.x / TILE_SIZE), 0)
+		start_y := max(i32(top_left.y / TILE_SIZE), 0)
+		end_x   := min(i32((top_left.x + view_width) / TILE_SIZE) + 1, map_width)
+		end_y   := min(i32((top_left.y + view_height) / TILE_SIZE) + 1, map_height)
+
+		for x in start_x..=end_x {
+			px := x * TILE_SIZE
+			rl.DrawLine(px, start_y * TILE_SIZE, px, end_y * TILE_SIZE, rl.Fade(rl.WHITE, 0.2))
+		}
+		for y in start_y..=end_y {
+			py := y * TILE_SIZE
+			rl.DrawLine(start_x * TILE_SIZE, py, end_x * TILE_SIZE, py, rl.Fade(rl.WHITE, 0.2))
+		}
+
+		// per-cell triangle
+		// pad: f32 = TILE_SIZE * 0.2
+		// for x in start_x..<end_x {
+		// 	for y in start_y..<end_y {
+		// 		cell_x := f32(x * TILE_SIZE)
+		// 		cell_y := f32(y * TILE_SIZE)
+
+		// 		// raylib expects counter-clockwise winding
+		// 		top    := rl.Vector2{ cell_x + TILE_SIZE/2,     cell_y + pad }
+		// 		left   := rl.Vector2{ cell_x + pad,             cell_y + TILE_SIZE - pad }
+		// 		right  := rl.Vector2{ cell_x + TILE_SIZE - pad, cell_y + TILE_SIZE - pad }
+		// 		rl.DrawTriangle(top, left, right, rl.Fade(rl.YELLOW, 0.3))
+		// 	}
+		// }
+	}
+}
+
+// draw_direction_triangle :: proc(center: rl.Vector2, direction: rl.Vector2, size: f32, color: rl.Color) {
+// 	if direction == {0, 0} {
+// 		return // no direction to draw (e.g. goal cell, or unreachable cell)
+// 	}
+
+// 	angle := math.atan2(direction.y, direction.x)
+
+// 	// base triangle pointing right (angle = 0), relative to center
+// 	p0 := rl.Vector2{  size * 0.6,  0 }
+// 	p1 := rl.Vector2{ -size * 0.4,  size * 0.4 }
+// 	p2 := rl.Vector2{ -size * 0.4, -size * 0.4 }
+
+// 	rl.DrawTriangle(
+// 		center + rl.Vector2Rotate(p0, angle),
+// 		center + rl.Vector2Rotate(p1, angle),
+// 		center + rl.Vector2Rotate(p2, angle),
+// 		color,
+// 	)
+// }
+
+// debug_flow_field_draw :: proc(camera: ^rl.Camera2D, active: bool, field: ^Flow_Field) {
+// 	when DEBUG_MODE {
+// 		if !active {
+// 			return
+// 		}
+
+// 		view_width  := GAME_WIDTH  / camera.zoom
+// 		view_height := GAME_HEIGHT / camera.zoom
+// 		top_left := camera.target - rl.Vector2{ f32(view_width)/2, f32(view_height)/2 }
+
+// 		start_x := max(i32(top_left.x / TILE_SIZE), 0)
+// 		start_y := max(i32(top_left.y / TILE_SIZE), 0)
+// 		end_x   := min(i32((top_left.x + view_width) / TILE_SIZE) + 1, field.width)
+// 		end_y   := min(i32((top_left.y + view_height) / TILE_SIZE) + 1, field.height)
+
+// 		for x in start_x..<end_x {
+// 			for y in start_y..<end_y {
+// 				cell := field.cells[y * field.width + x]
+// 				center := rl.Vector2{
+// 					f32(x) * TILE_SIZE + TILE_SIZE/2,
+// 					f32(y) * TILE_SIZE + TILE_SIZE/2,
+// 				}
+// 				draw_direction_triangle(center, cell.direction, TILE_SIZE * 0.35, rl.Fade(rl.SKYBLUE, 0.6))
+// 			}
+// 		}
+// 	}
+// }
+
+
 // Collision stuff
 debug_bounds :: proc(game: ^Game) {
 	when DEBUG_MODE {
@@ -102,3 +202,4 @@ debug_bounds :: proc(game: ^Game) {
 		}
 	}
 }
+
diff --git a/src/game.odin b/src/game.odin
index ee562d8..a3b399b 100644
--- a/src/game.odin
+++ b/src/game.odin
@@ -24,7 +24,6 @@ Game :: struct {
 gamepad_compat := #load("../gamecontrollerdb.txt", string)
 
 game_init :: proc() -> Game {
-    game := Game{}
     rl.InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, WINDOW_TITLE)
     rl.SetTargetFPS(60)
 
@@ -32,6 +31,9 @@ game_init :: proc() -> Game {
    	defer delete(gamepad_cstr)
 	rl.SetGamepadMappings(gamepad_cstr)
 
+    // ! game setup
+    game := Game{}
+
 	game.assets = asset_manager_init()
 	game.player = player_init(&game.assets.player)
 	game.camera = camera_init(&game.player, 1)
@@ -39,10 +41,10 @@ game_init :: proc() -> Game {
 	game.current_map = map_init()
 
     // ! init timers
-	game.enenmy_spawn_timer = init_timer(1, true)
+	game.enenmy_spawn_timer = init_timer(0.1, true)
 
 	// @ DEBUG
-	debug_init(&game)
+	debug_init(&game, false)
 
     return game
 }
@@ -58,7 +60,7 @@ game_update :: proc(game: ^Game) {
     if update_timer(&game.enenmy_spawn_timer, dt) {
     	spawn_enemy(&game.enemies, &game.assets.enemy, &game.enemy_count, game.current_map)
     }
-    update_enemies(&game.enemies, &game.assets.enemy, dt)
+    update_enemies(&game.enemies, &game.assets.enemy, game.enemy_count, dt)
 
 	// @ DEBUG
 	debug_camera_update(&game.debug)
@@ -67,22 +69,23 @@ game_update :: proc(game: ^Game) {
 
 game_draw :: proc(game: ^Game) {
 	cam := game.camera
-	if game.debug.camera_active {
-		cam = game.debug.camera
-	}
+	if game.debug.camera_active do cam = game.debug.camera
 
 	rl.BeginTextureMode(game.world)
 	    rl.ClearBackground(rl.BLACK)
     	rl.BeginMode2D(cam)
 			draw_map(game.current_map)
-			// draw objects
-			draw_enemies(&game.enemies)
-			draw_player(&game.player)
-  
 
 			// @ DEBUG
-    		debug_camera_draw(&game.camera, game.debug.camera_active)
     		debug_bounds(game)
+    		debug_camera_draw(&game.camera, game.debug.camera_active)
+            debug_grid_draw(&game.debug.camera, game.debug.grid_active)
+
+
+			// draw objects
+			draw_enemies(&game.enemies, game.enemy_count)
+			draw_player(&game.player)
+  
 		rl.EndMode2D()
 	rl.EndTextureMode()
 
diff --git a/src/main.odin b/src/main.odin
index aac5f17..bbe379d 100644
--- a/src/main.odin
+++ b/src/main.odin
@@ -12,7 +12,7 @@ WINDOW_WIDTH  :: 1920
 WINDOW_HEIGHT :: 1080
 GAME_WIDTH    :: 480
 GAME_HEIGHT   :: 270
-MAX_ENEMIES   :: 140
+MAX_ENEMIES   :: 10
 MAX_PROPS     :: 64
 TILE_SIZE     :: 32