138 lines
3.6 KiB
Python
138 lines
3.6 KiB
Python
"""
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raylib [core] example - 2D Camera System
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"""
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import pyray
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from raylib.colors import (
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RAYWHITE,
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DARKGRAY,
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RED,
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GREEN,
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SKYBLUE,
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BLUE,
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BLACK,
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)
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# Initialization
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MAX_BUILDINGS = 100
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SCREEN_WIDTH = 800
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SCREEN_HEIGHT = 450
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pyray.init_window(SCREEN_WIDTH, SCREEN_HEIGHT,
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'raylib [core] example - 2d camera')
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player = pyray.Rectangle(400, 280, 40, 40)
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buildings = []
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build_colors = []
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spacing = 0
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for i in range(MAX_BUILDINGS):
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width = pyray.get_random_value(50, 200)
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height = pyray.get_random_value(100, 800)
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y = SCREEN_HEIGHT - 130 - height
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x = -6000 + spacing
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buildings.append(pyray.Rectangle(x, y, width, height))
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spacing += width
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build_colors.append(pyray.Color(
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pyray.get_random_value(200, 240),
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pyray.get_random_value(200, 240),
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pyray.get_random_value(200, 250),
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255
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))
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camera = pyray.Camera2D()
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camera.target = pyray.Vector2(player.x + 20, player.y + 20)
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camera.offset = pyray.Vector2(SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2)
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camera.rotation = 0.0
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camera.zoom = 1.0
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pyray.set_target_fps(60) # Set our game to run at 60 frames-per-second
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# Main game loop
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while not pyray.window_should_close(): # Detect window close button or ESC key
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# Update
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# Player movement
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if pyray.is_key_down(pyray.KEY_RIGHT):
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player.x += 2
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elif pyray.is_key_down(pyray.KEY_LEFT):
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player.x -= 2
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# Camera target follows player
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camera.target = pyray.Vector2(player.x + 20, player.y + 20)
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# Camera rotation controls
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if pyray.is_key_down(pyray.KEY_A):
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camera.rotation -= 1
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elif pyray.is_key_down(pyray.KEY_S):
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camera.rotation += 1
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# Limit camera rotation to 80 degrees (-40 to 40)
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if camera.rotation > 40:
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camera.rotation = 40
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elif camera.rotation < -40:
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camera.rotation = -40
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# Camera zoom controls
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camera.zoom += pyray.get_mouse_wheel_move() * 0.05
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if camera.zoom > 3.0:
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camera.zoom = 3.0
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elif camera.zoom < 0.1:
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camera.zoom = 0.1
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# Camera reset (zoom and rotation)
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if pyray.is_key_pressed(pyray.KEY_R):
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camera.zoom = 1.0
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camera.rotation = 0.0
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# Draw
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pyray.begin_drawing()
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pyray.clear_background(RAYWHITE)
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pyray.begin_mode_2d(camera)
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pyray.draw_rectangle(-6000, 320, 13000, 8000, DARKGRAY)
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for i in range(MAX_BUILDINGS):
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pyray.draw_rectangle_rec(buildings[i], build_colors[i])
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pyray.draw_rectangle_rec(player, RED)
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x = int(camera.target.x)
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y = int(camera.target.y)
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pyray.draw_line(x, -SCREEN_HEIGHT * 10, x, SCREEN_HEIGHT * 10, GREEN)
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pyray.draw_line(-SCREEN_WIDTH * 10, y, SCREEN_WIDTH * 10, y, GREEN)
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pyray.end_mode_2d()
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pyray.draw_text('SCREEN AREA', 640, 10, 20, RED)
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pyray.draw_rectangle(0, 0, SCREEN_WIDTH, 5, RED)
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pyray.draw_rectangle(0, 5, 5, SCREEN_HEIGHT - 10, RED)
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pyray.draw_rectangle(SCREEN_WIDTH - 5, 5, 5, SCREEN_HEIGHT - 10, RED)
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pyray.draw_rectangle(0, SCREEN_HEIGHT - 5, SCREEN_WIDTH, 5, RED)
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pyray.draw_rectangle(10, 10, 250, 113, pyray.fade(SKYBLUE, 0.5))
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pyray.draw_rectangle_lines(10, 10, 250, 113, BLUE)
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pyray.draw_text('Free 2d camera controls:', 20, 20, 10, BLACK)
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pyray.draw_text('- Right/Left to move Offset', 40, 40, 10, DARKGRAY)
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pyray.draw_text('- Mouse Wheel to Zoom in-out', 40, 60, 10, DARKGRAY)
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pyray.draw_text('- A / S to Rotate', 40, 80, 10, DARKGRAY)
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pyray.draw_text('- R to reset Zoom and Rotation', 40, 100, 10, DARKGRAY)
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pyray.end_drawing()
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# De-Initialization
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pyray.close_window() # Close window and OpenGL context
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