CODEWITHSUNDEEP
pythonpython-3.xpygame
ChewyCarrot
ChewyCarrot

Reputation: 220

Moving scalable rectangle with mouse in pygame

I'm trying to move a rectangle inside of pygame, and making it scalable.

The scalable rectangle code is something like this then I tried to add an event like this:

from pygame imports *
init()

rect1 = (rect1x, rect1y, 300,300)
rect1x = 0
rect1y = 0

while running: 
    x,y = mouse.get_pos()
        if rect1Pressed == True:
        rect1x = x
        rect1y = y
    for evnt in event.get():
            if evnt.type == QUIT:
                running = False
    if evnt.type == MOUSEBUTTONDOWN:
        if evnt.button == 1:
            if rect1.collidepoint(mouse.get_pos()):
                rect1Pressed == True

How would i incorporate the scalable rectangle and being able to make it move with the mouse? So that the window will follow the mouse motion. So it kinda is like a on your laptop where your able to scale the window and also move it around.

Upvotes: 2

Views: 333

Answers (1)

skrx
skrx

Reputation: 20438

You could check which mouse button is pressed in the elif event.type == pg.MOUSEMOTION: block, e.g. if event.buttons[0]:, and then either move or scale the rect depending on the button. To move the rect, just add the event.rel to the rect.x and rect.y attributes.

import pygame as pg


pg.init()
screen = pg.display.set_mode((640, 480))
clock = pg.time.Clock()
rect1 = pg.Rect(100, 100, 161, 100)
rect2 = pg.Rect(300, 200, 161, 100)
selected_rect = None

done = False
while not done:
    for event in pg.event.get():
        if event.type == pg.QUIT:
            done = True
        elif event.type == pg.MOUSEBUTTONDOWN:
            for rect in (rect1, rect2):
                if rect.collidepoint(event.pos):
                    selected_rect = rect  # Select the colliding rect.
        elif event.type == pg.MOUSEBUTTONUP:
            selected_rect = None  # De-select the rect.
        elif event.type == pg.MOUSEMOTION:
            if selected_rect is not None:  # If a rect is selected.
                if event.buttons[0]:  # Left mouse button is down.
                    # Move the rect.
                    selected_rect.x += event.rel[0]
                    selected_rect.y += event.rel[1]
                else:  # Right or middle mouse button.
                    # Scale the rect.
                    selected_rect.w += event.rel[0]
                    selected_rect.h += event.rel[1]
                    selected_rect.w = max(selected_rect.w, 10)
                    selected_rect.h = max(selected_rect.h, 10)

    screen.fill((30, 30, 30))
    pg.draw.rect(screen, (0, 100, 250), rect1)
    pg.draw.rect(screen, (0, 200, 120), rect2)
    pg.display.flip()
    clock.tick(30)

Upvotes: 1

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