More core examples (#13)
* Added core_input_keys example * Added core_basic_window example * Added core_input_mouse example * Added core_input_mouse_wheel example * Added Rectangle struct * Added core_input_gestures example to utilize the Rectangle struct * Removed unused imports * Used the right draw function for the example * PEP8 fixes * Added core 2d camera examples * Added core 2d camera examples
This commit is contained in:
Matt Lebrun
GitHub
parent
6854ec4a3e
commit
6a3be55fe2
4 changed files with 462 additions and 10 deletions
137
examples/core/core_2d_camera.py
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137
examples/core/core_2d_camera.py
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"""
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raylib [core] example - 2d camera
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"""
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from raylib.pyray 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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pyray = PyRay()
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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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314
examples/core/core_2d_camera_platformer.py
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examples/core/core_2d_camera_platformer.py
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"""
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raylib [core] example - 2d camera platformer
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"""
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from math import sqrt
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from raylib.pyray import PyRay
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from raylib.colors import (
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DARKGRAY,
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RED,
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BLACK,
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GRAY,
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LIGHTGRAY,
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)
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pyray = PyRay()
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# Initialization
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global g_evening_out, g_even_out_target
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g_evening_out = False
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G = 400
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PLAYER_JUMP_SPD = 350.0
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PLAYER_HOR_SPD = 200.0
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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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# Raylib Math
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def vector2_subtract(v1, v2):
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return pyray.Vector2(v1.x - v2.x, v1.y - v2.y)
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def vector2_add(v1, v2):
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return pyray.Vector2(v1.x + v2.x, v1.y + v2.y)
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def vector2_length(v):
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return sqrt((v.x * v.x) + (v.y * v.y))
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def vector2_scale(v, scale):
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return pyray.Vector2(v.x * scale, v.y * scale)
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class Player:
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def __init__(self, position, speed, can_jump):
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self.position = position
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self.speed = speed
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self.can_jump = can_jump
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class EnvItem:
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def __init__(self, rect, blocking, color):
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self.rect = rect
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self.blocking = blocking
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self.color = color
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def update_player(player, env_items, delta):
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if pyray.is_key_down(pyray.KEY_LEFT):
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player.position.x -= PLAYER_HOR_SPD * delta
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if pyray.is_key_down(pyray.KEY_RIGHT):
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player.position.x += PLAYER_HOR_SPD * delta
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if pyray.is_key_down(pyray.KEY_SPACE) and player.can_jump:
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player.speed = -PLAYER_JUMP_SPD
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player.can_jump = False
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hit_obstacle = False
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for ei in env_items:
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p = player.position
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if (
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ei.blocking and
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ei.rect.x <= p.x and
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ei.rect.x + ei.rect.width >= p.x and
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ei.rect.y >= p.y and
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ei.rect.y < p.y + player.speed * delta
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):
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hit_obstacle = True
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player.speed = 0.0
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p.y = ei.rect.y
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if not hit_obstacle:
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player.position.y += player.speed * delta
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player.speed += G * delta
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player.can_jump = False
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else:
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player.can_jump = True
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def update_camera_center(
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camera, player, env_items, delta, width, height
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):
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camera.offset = pyray.Vector2(width / 2, height / 2)
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camera.target = player.position
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def update_camera_center_inside_map(
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camera, player, env_items, delta, width, height
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):
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camera.target = player.position
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camera.offset = pyray.Vector2(width / 2, height / 2)
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minX = 1000
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minY = 1000
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maxX = -1000
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maxY = -1000
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for ei in env_items:
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minX = min(ei.rect.x, minX)
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maxX = max(ei.rect.x + ei.rect.width, maxX)
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minY = min(ei.rect.y, minY)
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maxY = max(ei.rect.y + ei.rect.height, maxY)
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wmax = pyray.get_world_to_screen_2d(pyray.Vector2(maxX, maxY), camera)
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wmin = pyray.get_world_to_screen_2d(pyray.Vector2(minX, minY), camera)
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if wmax.x < width:
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camera.offset.x = width - (wmax.x - width / 2)
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if wmax.y < height:
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camera.offset.y = height - (wmax.y - height / 2)
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if wmin.x > 0:
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camera.offset.x = width / 2 - wmin.x
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if wmin.y > 0:
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camera.offset.y = height / 2 - wmin.y
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def update_camera_center_smooth_follow(
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camera, player, env_items, delta, width, height
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):
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min_speed = 30
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min_effect_length = 10
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fraction_speed = 0.8
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camera.offset = pyray.Vector2(width / 2, height / 2)
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diff = vector2_subtract(player.position, camera.target)
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length = vector2_length(diff)
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if length > min_effect_length:
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speed = max(fraction_speed * length, min_speed)
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camera.target = vector2_add(
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camera.target, vector2_scale(diff, speed * delta / length)
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)
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def update_camera_even_out_on_landing(
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camera, player, env_items, delta, width, height
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):
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global g_evening_out, g_even_out_target
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even_out_speed = 700
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camera.offset = pyray.Vector2(width / 2, height / 2)
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camera.target.x = player.position.x
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if g_evening_out:
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if g_even_out_target > camera.target.y:
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camera.target.y += even_out_speed * delta
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if camera.target.y > g_even_out_target:
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camera.target.y = g_even_out_target
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g_evening_out = False
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else:
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camera.target.y -= even_out_speed * delta
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if camera.target.y < g_even_out_target:
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camera.target.y = g_even_out_target
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g_evening_out = False
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else:
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if (
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player.can_jump and
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(player.speed == 0) and
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(player.position.y != camera.target.y)
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):
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g_evening_out = True
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g_even_out_target = player.position.y
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def update_camera_player_bounds_push(
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camera, player, env_items, delta, width, height
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):
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bbox = pyray.Vector2(0.2, 0.2)
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bbox_world_min = pyray.get_world_to_screen_2d(
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pyray.Vector2((1 - bbox.x) * 0.5 * width,
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(1 - bbox.y) * 0.5 * height),
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camera
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)
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bbox_world_max = pyray.get_world_to_screen_2d(
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pyray.Vector2((1 + bbox.x) * 0.5 * width,
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(1 + bbox.y) * 0.5 * height),
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camera
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)
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camera.offset = pyray.Vector2((1 - bbox.x) * 0.5 * width,
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(1 - bbox.y) * 0.5 * height)
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if player.position.x < bbox_world_min.x:
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camera.target.x = player.position.x
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if player.position.y < bbox_world_min.y:
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camera.target.y = player.position.y
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if player.position.x > bbox_world_max.x:
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camera.target.x = (
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bbox_world_min.x + (player.position.x - bbox_world_max.x)
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)
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if player.position.y > bbox_world_max.y:
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camera.target.y = (
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bbox_world_min.y + (player.position.y - bbox_world_max.y)
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)
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# Main intialization
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player = Player(pyray.Vector2(400, 280), 0, False)
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env_items = (
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EnvItem(pyray.Rectangle(0, 0, 1000, 400), 0, LIGHTGRAY),
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EnvItem(pyray.Rectangle(0, 400, 1000, 200), 1, GRAY),
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EnvItem(pyray.Rectangle(300, 200, 400, 10), 1, GRAY),
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EnvItem(pyray.Rectangle(250, 300, 100, 10), 1, GRAY),
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EnvItem(pyray.Rectangle(650, 300, 100, 10), 1, GRAY),
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)
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camera = pyray.Camera2D()
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camera.target = player.position
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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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# Store pointers to the multiple update camera functions
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camera_updaters = (
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update_camera_center,
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update_camera_center_inside_map,
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update_camera_center_smooth_follow,
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update_camera_even_out_on_landing,
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update_camera_player_bounds_push,
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)
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camera_option = 0
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camera_updaters_length = len(camera_updaters)
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camera_descriptions = (
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'Follow player center',
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'Follow player center, but clamp to map edges',
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'Follow player center smoothed',
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('Follow player center horizontally '
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'update player center vertically after landing'),
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'Player push camera on getting too close to screen edge',
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)
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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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delta_time = pyray.get_frame_time()
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update_player(player, env_items, delta_time)
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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 < 0.25:
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camera.zoom = 0.25
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if pyray.is_key_pressed(pyray.KEY_R):
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camera.zoom = 1.0
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player.position = pyray.Vector2(400, 280)
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if pyray.is_key_pressed(pyray.KEY_C):
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camera_option = (camera_option + 1) % camera_updaters_length
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# Call update camera function by its pointer
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camera_updaters[camera_option](
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camera, player, env_items, delta_time,
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SCREEN_WIDTH, SCREEN_HEIGHT
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)
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# Draw
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pyray.begin_drawing()
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pyray.clear_background(LIGHTGRAY)
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pyray.begin_mode_2d(camera)
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for env_item in env_items:
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pyray.draw_rectangle_rec(env_item.rect, env_item.color)
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player_rect = pyray.Rectangle(
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int(player.position.x) - 20,
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int(player.position.y) - 40,
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40, 40
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)
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pyray.draw_rectangle_rec(player_rect, RED)
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pyray.end_mode_2d()
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pyray.draw_text('Controls:', 20, 20, 10, BLACK)
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pyray.draw_text('- Right/Left to move', 40, 40, 10, DARKGRAY)
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pyray.draw_text('- Space to jump', 40, 60, 10, DARKGRAY)
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pyray.draw_text('- Mouse Wheel to Zoom in-out, R to reset zoom',
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40, 80, 10, DARKGRAY)
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pyray.draw_text('- C to change camera mode', 40, 100, 10, DARKGRAY)
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pyray.draw_text('Current camera mode:', 20, 120, 10, BLACK)
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pyray.draw_text(camera_descriptions[camera_option], 40, 140, 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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@ -3,7 +3,7 @@
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raylib [core] example - Input Gestures Detection
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"""
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from raylib.pyray import PyRay, makeStructHelper
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from raylib.pyray import PyRay
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from raylib.colors import (
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RAYWHITE,
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LIGHTGRAY,
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@ -73,15 +73,11 @@ while not pyray.window_should_close(): # Detect window close button or ESC key
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pyray.draw_rectangle_rec(touch_area, GRAY)
|
||||
pyray.draw_rectangle(225, 15, SCREEN_WIDTH - 240, SCREEN_HEIGHT - 30,
|
||||
RAYWHITE)
|
||||
|
||||
pyray.draw_text(
|
||||
'GESTURES TEST AREA',
|
||||
SCREEN_WIDTH - 270, SCREEN_HEIGHT - 40, 20, pyray.fade(GRAY, 0.5)
|
||||
)
|
||||
|
||||
pyray.draw_rectangle(10, 29, 200, SCREEN_HEIGHT - 50, GRAY)
|
||||
pyray.draw_text('DETECTED GESTURES', 50, 15, 10, GRAY)
|
||||
|
||||
for i, val in enumerate(gesture_strings):
|
||||
if i % 2 == 0:
|
||||
pyray.draw_rectangle(
|
||||
|
|
@ -95,11 +91,12 @@ while not pyray.window_should_close(): # Detect window close button or ESC key
|
|||
else:
|
||||
pyray.draw_text(val, 35, 36 + 20 * i, 10, MAROON)
|
||||
|
||||
pyray.draw_rectangle_lines(10, 29, 200, SCREEN_HEIGHT - 50, GRAY)
|
||||
pyray.draw_text('DETECTED GESTURES', 50, 15, 10, GRAY)
|
||||
|
||||
if current_gesture != pyray.GESTURE_NONE:
|
||||
pyray.draw_circle_v(touch_position, 30, MAROON)
|
||||
|
||||
|
||||
pyray.end_drawing()
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -28,10 +28,14 @@ pyray.set_target_fps(60) # Set our game to run at 60 frames-per-second
|
|||
# Main game loop
|
||||
while not pyray.window_should_close(): # Detect window close button or ESC key
|
||||
# Update
|
||||
if pyray.is_key_down(pyray.KEY_RIGHT): ball_position.x += 2
|
||||
if pyray.is_key_down(pyray.KEY_LEFT): ball_position.x -= 2
|
||||
if pyray.is_key_down(pyray.KEY_UP): ball_position.y -= 2
|
||||
if pyray.is_key_down(pyray.KEY_DOWN): ball_position.y += 2
|
||||
if pyray.is_key_down(pyray.KEY_RIGHT):
|
||||
ball_position.x += 2
|
||||
if pyray.is_key_down(pyray.KEY_LEFT):
|
||||
ball_position.x -= 2
|
||||
if pyray.is_key_down(pyray.KEY_UP):
|
||||
ball_position.y -= 2
|
||||
if pyray.is_key_down(pyray.KEY_DOWN):
|
||||
ball_position.y += 2
|
||||
|
||||
# Draw
|
||||
pyray.begin_drawing()
|
||||
|
|
|
|||
Reference in a new issue