I'm trying to create a bird's-eye-view game (e.g. hotline miami) in pygame. I've gotten stuck at the collision detection. I'm trying to to see if the player hits a block on the left, right, in front or behind . I've gotten only to doing the 'in front' collision but that doesn't work; the player will hit the block 'head first', stop, but is then able to move through the block if he spams the arrow key. I know what the problem is (in the if else statement in the collision detection) but I can't for the life of me find the solution. Everything I tried doesn't seem to work. Help! Any help would be greatly appreciated, thanks in advance! (btw this is my first time on stack overflow, so sorry if I'm not asking the question well) (I removed some of the unnecessary code like the pygame.init() and variables)
def drawBlock(block_width,block_height,x,y):
pygame.draw.rect(gameDisplay, red, [x,y,block_width,block_height])
def gameLoop(x,y):
while not gameExit:
level = ["W","W","W","W","W","W","W","W","W","W","W","W",
"N","N","N","N","N","N","N","N","N","N","N","N","L",
"N","N","N","N","N","N","N","N","N","N","N","N","L",
"N","N","N","N","P","N","N","N","N","N","N","N","L",
"N","N","N","N","N","N","N","N","N","N","N","N","L",
"N","N","N","N","N","N","N","N","N","N","N","N","L",
"N","N","N","N","N","N","N","N","N","N","N","N","L",
"N","N","N","N","N","N","N","N","N","N","N","N","L",
"N","N","N","N","N","N","N","N","N","P","N","N","L",
"N","N","N","N","P","N","N","N","N","N","N","N","L",
"N","N","N","N","N","N","N","N","N","N","N","N","L","S"]
#EVENT HANDLING
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if canMoveUp:
if event.key == pygame.K_UP:
y_change = -player_movement
if canMoveDown:
if event.key == pygame.K_DOWN:
y_change = player_movement
if event.key == pygame.K_LEFT:
x_change = -player_movement
if event.key == pygame.K_RIGHT:
x_change = player_movement
if event.type == pygame.KEYUP:
if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
y_change = 0
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
x_change = 0
pX += x_change
pY += y_change
gameDisplay.fill(black)
#CALCULATING THE SIZE OF THE BLOCKS SO THEY FIT W/ A VARIETY OF RESOLUTIONS
if calculateBlockX:
for element in level:
if element == "W":
W_count += 1
if element == "S":
block_width = (display_width/W_count)
calculateBlockX = False
if calculateBlockY:
for element in level:
if element == "L":
L_count += 1
if element == "S":
block_height = (display_height/L_count)
calculateBlockY = False
#COUNTING HOW MANY BLOCKS THERE ARE IN THE LEVEL ARRAY (P)
if P_countFunction:
for element in level:
if element == "P":
P_count += 1
if element == "S":
print(P_count)
P_countFunction = False
#ALL THE X AND Ys OF ALL THE BLOCKS IN THE LEVEL, AND ACTUALLY DRAWING THEM
blockXY = []
for element in level:
if element == "N":
x += block_width
if element == "L":
y += block_height
x = 0
if element == "P":
drawBlock(block_width,block_height,x,y)
blockXY.append(x)
blockXY.append(y)
if appendBlockXY:
if len(collisionArray) > P_count:
del(collisionArray[P_count])
print(collisionArray)
appendBlockXY = False
collisionArray.append(blockXY)
blockXY = []
x += block_width
if element == "S":
y = 0
#COLLISION DETECTION
for XnY in collisionArray:
if pX >= XnY[0] and pX <= XnY[0] + block_width and pY + playerSize <= XnY[1] or pX + playerSize >= XnY[0] and pX <= XnY[0] + block_width:
if pY - block_height == XnY[1]:
canMoveUp = False
y_change = 0
if pY - block_height != XnY[1]:
canMoveUp = True
else:
if pY - block_height >= XnY[1]:
canMoveUp = True
#gameDisplay.blit(img,[pX,pY])
pygame.draw.rect(gameDisplay, green, [pX,pY,playerSize,playerSize])
clock.tick(60)
pygame.display.update()
pygame.quit()
quit()
gameLoop(x,y)
pygame.display.update()
