pscreenTest_Mouse&Collision.py

File contents

#Example showing mouse input and collision detection
#An image is necessary for this example to work!

import pscreen

pscreen.LoadScreen((400, 400), False, "pygame")

#Make sure this points to the name of your image and it is in the same directory
#as your script
spriteName = "example_sprite.png"

#Load a sprite into slot 0
pscreen.SpriteLoad(spriteName, 0)

#Font write
pscreen.FontSelect("Arial", 16)

#Declare some variables to keep track of the mouse position
mouseX = 0
mouseY = 0

#Declare some variables to keep track of the sprite's top left corner
posX = 0
posY = 0

#Declare a sequence of rectangles
boxes = [(30, 40, 110, 70), (310, 230, 380, 260), (100, 240, 130, 270), (300, 40, 320, 80)]

#Game loop
while True:

    #Clear the screen
    pscreen.ClearScreen((0, 0, 0))
    
    #Exit out of this loop if escape is pressed
    if pscreen.KeyIsPressed("escape"):
        break

    #Compute the new position of our sprite
    posX = (mouseX - pscreen.SpriteWidth(0) / 2)
    posY = (mouseY - pscreen.SpriteHeight(0) / 2)

    pscreen.FontWrite(5, 350, "Click and drag the left mouse button to move the sprite", (255, 255, 255, 255))

    #Draw the sprite at this point
    pscreen.SpriteRender(mouseX, mouseY, 0)

    #Render our boxes
    for i in range(0, len(boxes)):
        box = boxes[i]
        pscreen.Rectangle(box[0], box[1], box[2], box[3], (255, 0, 0, 255), 0)
        pscreen.FontWrite((box[0] + box[2])/2 - 5, (box[1] + box[3])/2 - 5, str(i))
        #If our sprite collides with any of the boxes, notify us
        if pscreen.CollideRectangles(posX, posY, posX + pscreen.SpriteWidth(0), posY + pscreen.SpriteHeight(0), box[0], box[1], box[2], box[3]) == True:
            pscreen.FontWrite(15, 370, "Collision with box " + str(i) + "!", (255, 255, 255, 255))

    #If the left mouse button is pressed, save the mouse position off
    if pscreen.MouseGetButtonL():
        mouseX = pscreen.MouseGetX()
        mouseY = pscreen.MouseGetY()

    pscreen.UpdateScreen()

pscreen.UnloadScreen()