an attempt to sketch smth in Odin

tankies.odin

package main

import "core:fmt"
import ma "vendor:miniaudio"
import rl "vendor:raylib"

main :: proc() {
	// Initialize the audio engine
	engine_config := ma.engine_config_init()
	engine_config.sampleRate = 44100
	engine_config.channels = 2
	engine: ma.engine
	sounds: [2]ma.sound

	result := ma.engine_init(&engine_config, &engine)
	if result != .SUCCESS {
		fmt.println("Failed to initialize audio engine")
		return
	}

	defer {
		// delete(sounds)
		for &snd in sounds {
			ma.sound_uninit(&snd)
		}
		ma.engine_uninit(&engine)
	}

	for &snd, ndx in sounds {
		result = ma.sound_init_from_file(
			&engine,
			fmt.caprintf("snd/engine_%d.wav", ndx),
			0,
			nil,
			nil,
			&snd,
		)
		if result != .SUCCESS {
			fmt.printf("Failed to load engine_%d.wav", ndx)
		}
	}
	ma.sound_set_looping(&sounds[0], true)
	ma.sound_set_looping(&sounds[1], true)

	Sprite :: enum {
		PLR       = 80,
		TNK_UP    = 0,
		TNK_DOWN  = 16 * 2,
		TNK_LEFT  = 16 * 4,
		TNK_RIGHT = 16 * 6,
	}
	speed :: 40.0
	rl.InitWindow(1280, 720, "Texture Drawing")
	rl.SetTargetFPS(60)

	// Load the texture
	tiles := rl.LoadTexture("img/tiles.png")
	defer rl.UnloadTexture(tiles)

	srcRect := rl.Rectangle{cast(f32)(Sprite.PLR + Sprite.TNK_UP), 64, 16, 16}
	tnkPos := rl.Vector2{0, 0}

	camera := rl.Camera2D {
		zoom   = 2.0,
		target = rl.Vector2{0, srcRect.height},
		offset = rl.Vector2 {
			cast(f32)(rl.GetScreenWidth() / 2) - srcRect.width * 4,
			cast(f32)(rl.GetScreenHeight()) - srcRect.height,
		},
	}
	// Main loop
	toggle_frame := false
	time_frame: f32
	tint := rl.WHITE
	for !rl.WindowShouldClose() {
		if rl.IsKeyDown(.UP) {
			if ma.sound_is_playing(&sounds[0]) {
				ma.sound_stop(&sounds[0])
				ma.sound_start(&sounds[1])
			}
			base_frame := cast(f32)Sprite.PLR
			srcRect.x = base_frame
			tnkPos.y -= speed * rl.GetFrameTime()
			if time_frame > 0.05 {
				toggle_frame = !toggle_frame
				time_frame = 0.0
			}
			if toggle_frame {
				tint = rl.RED
				srcRect.x += srcRect.width
			} else {srcRect.x = base_frame;tint = rl.WHITE}
			time_frame += rl.GetFrameTime()

		} else if rl.IsKeyDown(.LEFT) {
			if ma.sound_is_playing(&sounds[0]) {
				ma.sound_stop(&sounds[0])
				ma.sound_start(&sounds[1])
			}
			base_frame := cast(f32)(Sprite.PLR + Sprite.TNK_LEFT)
			srcRect.x = base_frame
			tnkPos.x -= speed * rl.GetFrameTime()
			if toggle_frame {
				tint = rl.RED
				srcRect.x += srcRect.width
			} else {srcRect.x = base_frame;tint = rl.WHITE}
			if time_frame > 0.05 {
				toggle_frame = !toggle_frame
				time_frame = 0.0
			}
			time_frame += rl.GetFrameTime()
		} else if rl.IsKeyDown(.DOWN) {
			if ma.sound_is_playing(&sounds[0]) {
				ma.sound_stop(&sounds[0])
				ma.sound_start(&sounds[1])
			}
			base_frame := cast(f32)(Sprite.PLR + Sprite.TNK_DOWN)
			srcRect.x = base_frame
			tnkPos.y += speed * rl.GetFrameTime()
			if toggle_frame {
				tint = rl.RED
				srcRect.x += srcRect.width
			} else {srcRect.x = base_frame;tint = rl.WHITE}
			if time_frame > 0.05 {
				toggle_frame = !toggle_frame
				time_frame = 0.0
			}
			time_frame += rl.GetFrameTime()
		} else if rl.IsKeyDown(.RIGHT) {
			if ma.sound_is_playing(&sounds[0]) {
				ma.sound_stop(&sounds[0])
				ma.sound_start(&sounds[1])
			}
			base_frame := cast(f32)(Sprite.PLR + Sprite.TNK_RIGHT)
			srcRect.x = base_frame
			tnkPos.x += speed * rl.GetFrameTime()
			if toggle_frame {
				tint = rl.RED
				srcRect.x += srcRect.width
			} else {srcRect.x = base_frame;tint = rl.WHITE}
			if time_frame > 0.05 {
				toggle_frame = !toggle_frame
				time_frame = 0.0
			}
			time_frame += rl.GetFrameTime()
		} else {
			if !ma.sound_is_playing(&sounds[0]) {
				ma.sound_stop(&sounds[1])
				ma.sound_start(&sounds[0])
			}
		}
		// Draw the texture
		rl.BeginDrawing()
		rl.ClearBackground(rl.BLANK)
		rl.DrawFPS(0, 0)
		rl.DrawText(rl.TextFormat("%f", time_frame), 100, 0, 10, rl.YELLOW)
		rl.BeginMode2D(camera)
		rl.DrawTextureRec(tiles, srcRect, tnkPos, rl.WHITE)

		rl.EndMode2D()
		rl.EndDrawing()
	}
}