sem/python-raycaster
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added displaying rays

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Sem van der Hoeven
2020-07-02 18:53:39 +02:00
parent fc62c1c167
commit 2d5e115bea
1 changed files with 8 additions and 3 deletions
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11
raycaster.py
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@@ -247,6 +247,7 @@ def game_loop(clock, screen):
# loop that goes over every x (vertical line) # loop that goes over every x (vertical line)
screen.fill((0, 0, 0)) screen.fill((0, 0, 0))
draw_topdown(height,posX,posY,dirX,dirY)
for x in range(screenWidth): for x in range(screenWidth):
# calculate camera x, the x coordinate on the camera plane that the current # calculate camera x, the x coordinate on the camera plane that the current
@@ -260,6 +261,8 @@ def game_loop(clock, screen):
# which box of the map we're in # which box of the map we're in
mapX = int(posX) mapX = int(posX)
mapY = int(posY) mapY = int(posY)
map_ray_x = posX
map_ray_y = posY
# length of the ray from current position to next x or y side # length of the ray from current position to next x or y side
sideDistX = 0.0 # (double) sideDistX = 0.0 # (double)
@@ -280,8 +283,7 @@ def game_loop(clock, screen):
# if the ray direction has a negative x-component, stepX will be -1. If it has a positive x-component, # if the ray direction has a negative x-component, stepX will be -1. If it has a positive x-component,
# it will be +1. If the x-component is 0 the value of stepX won't matter because it won't be used. # it will be +1. If the x-component is 0 the value of stepX won't matter because it won't be used.
# same for stepY # same for stepY
stepX = 0 # (int) stepX = 0 #
stepY = 0 # (int)
hit = 0 # was there a wall hit? hit = 0 # was there a wall hit?
side = 0 # (int) was a vertical or horizontal wall hit? side = 0 # (int) was a vertical or horizontal wall hit?
@@ -311,10 +313,12 @@ def game_loop(clock, screen):
if (sideDistX < sideDistY): # the ray is going morea horizontal than vertical if (sideDistX < sideDistY): # the ray is going morea horizontal than vertical
sideDistX += deltaDistX sideDistX += deltaDistX
mapX += stepX mapX += stepX
map_ray_x += stepX
side = 0 side = 0
else: else:
sideDistY += deltaDistY sideDistY += deltaDistY
mapY += stepY mapY += stepY
map_ray_y += stepY
side = 1 side = 1
# check if the ray has hit a wall # check if the ray has hit a wall
# if it is not 0, so the square does not contain a walkable square, so a wall # if it is not 0, so the square does not contain a walkable square, so a wall
@@ -347,7 +351,8 @@ def game_loop(clock, screen):
pygame.draw.line(screen, color, (x, int(drawStart)), pygame.draw.line(screen, color, (x, int(drawStart)),
(x, int(drawEnd)), 1) (x, int(drawEnd)), 1)
draw_topdown(height,posX,posY,dirX,dirY) pygame.draw.line(screen, (255, 0, 0), (posX * height, posY * height + screenHeight), (mapX *height , mapY * height + screenHeight), 1)
if moveForward: if moveForward:
movePosX = int(posX + dirX * moveSpeed) # x position to move to next movePosX = int(posX + dirX * moveSpeed) # x position to move to next