WIP trying to implement floors
This commit is contained in:
Daniele Verducci (Slimpenguin)
parent
5b8b45e793
commit
edad79cb9e
@ -27,6 +27,7 @@ RAYCAST_RESOLUTION_SCALING = 4
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RAYCAST_RENDER_WIDTH = int(RAYCAST_WIN_WIDTH / RAYCAST_RESOLUTION_SCALING)
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RAYCAST_RENDER_HEIGHT = int(RAYCAST_WIN_HEIGHT / RAYCAST_RESOLUTION_SCALING)
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DOF = 2*MAP_SIZE # Depth Of Field
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COLOR_CEILING = sdl2.ext.Color(0,0,128,255)
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# Player cfg
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PLAYER_SPEED = 8
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@ -34,7 +35,7 @@ PLAYER_ROTATION_SPEED = 0.1
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PLAYER_SPAWN_POSITION = {"x": int(MAP_SCALE * 2), "y": int(MAP_SCALE * 5), "r": 0} # r is rotation in radiants
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# Dungeon data
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MAP = [
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MAP_WALLS = [
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
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3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
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@ -53,6 +54,25 @@ MAP = [
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1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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]
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MAP_FLOORS = [
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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]
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TEXTURES = [
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[
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1, 1, 1, 1, 1, 1, 1, 1,
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@ -90,8 +110,10 @@ class Main:
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def __init__(self):
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# Check valid map
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if len(MAP) != MAP_SIZE * MAP_SIZE:
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raise ValueError("Map size is {}, but should be a power of {}".format(len(MAP), MAP_SIZE))
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if len(MAP_WALLS) != MAP_SIZE * MAP_SIZE:
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raise ValueError("Walls map size is {}, but should be a power of {}".format(len(MAP_WALLS), MAP_SIZE))
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if len(MAP_FLOORS) != MAP_SIZE * MAP_SIZE:
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raise ValueError("Floors map size is {}, but should be a power of {}".format(len(MAP_FLOORS), MAP_SIZE))
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# Graphics
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sdl2.ext.init()
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@ -124,9 +146,9 @@ class Main:
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keystate = sdl2.SDL_GetKeyboardState(None)
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# Rotate player
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if keystate[sdl2.SDL_SCANCODE_LEFT]:
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self.player_position["r"] = self.player_position["r"] - PLAYER_ROTATION_SPEED
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self.player_position["r"] = self.angleBoudariesFix(self.player_position["r"] - PLAYER_ROTATION_SPEED)
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elif keystate[sdl2.SDL_SCANCODE_RIGHT]:
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self.player_position["r"] = self.player_position["r"] + PLAYER_ROTATION_SPEED
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self.player_position["r"] = self.angleBoudariesFix(self.player_position["r"] + PLAYER_ROTATION_SPEED)
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# Compute deltax and deltay based on player direction
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player_delta_x = math.cos(self.player_position["r"]) * PLAYER_SPEED
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@ -173,7 +195,7 @@ class Main:
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mapX = int(newPlayerX / MAP_SCALE)
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mapY = int(self.player_position["y"] / MAP_SCALE)
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mapArrayPosition = mapY * MAP_SIZE + mapX
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE-1 and MAP[mapArrayPosition] == 0:
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE-1 and MAP_WALLS[mapArrayPosition] == 0:
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# Move player (X)
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self.player_position["x"] = newPlayerX
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@ -182,7 +204,7 @@ class Main:
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mapX = int(self.player_position["x"] / MAP_SCALE)
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mapY = int(newPlayerY / MAP_SCALE)
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mapArrayPosition = mapY * MAP_SIZE + mapX
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE-1 and MAP[mapArrayPosition] == 0:
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE-1 and MAP_WALLS[mapArrayPosition] == 0:
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# Move player (Y)
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self.player_position["y"] = newPlayerY
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@ -206,28 +228,23 @@ class Main:
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def draw2Dmap(self):
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# 2D map
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sdl2.ext.draw.fill(self.mapSurface, sdl2.ext.Color(0,0,0,255)) # Clears map screen
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for i in range(len(MAP)):
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for i in range(len(MAP_WALLS)):
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posX = i % MAP_SIZE * MAP_SCALE
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posY = math.floor(i / MAP_SIZE) * MAP_SCALE
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color = 0
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if MAP[i] > 0:
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if MAP_WALLS[i] > 0:
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color = 255
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sdl2.ext.draw.fill(self.mapSurface, sdl2.ext.Color(color,color,color,255), (posX, posY, MAP_SCALE - 1, MAP_SCALE - 1))
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def drawRays(self):
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sdl2.ext.draw.fill(self.raycastSurface, sdl2.ext.Color(0,0,128,255), (0, 0, RAYCAST_WIN_WIDTH, RAYCAST_WIN_HEIGHT/2)) # Clears upper raycast screen (draws ceiling)
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sdl2.ext.draw.fill(self.raycastSurface, sdl2.ext.Color(0,128,0,255), (0, RAYCAST_WIN_HEIGHT/2, RAYCAST_WIN_WIDTH, RAYCAST_WIN_HEIGHT/2)) # Clears upper raycast screen (draws floor)
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sdl2.ext.draw.fill(self.raycastSurface, COLOR_CEILING, (0, 0, RAYCAST_WIN_WIDTH, RAYCAST_WIN_HEIGHT/2)) # Clears upper raycast screen (draws ceiling)
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# Casts rays for raycasting
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playerAngle = self.player_position["r"]
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# Cast one ray for every window pixel, from -0,5 rads to +0,5 rads (about 60° viewing angle)
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for i in range(RAYCAST_RENDER_WIDTH):
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rayAngle = playerAngle + (i/RAYCAST_RENDER_WIDTH) - 0.5
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if rayAngle < 0:
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rayAngle = math.pi * 2 + rayAngle
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if rayAngle > math.pi * 2:
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rayAngle = rayAngle - math.pi * 2
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rayAngle = self.angleBoudariesFix(playerAngle + (i/RAYCAST_RENDER_WIDTH) - 0.5)
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# Which map wall tiles have been hit by rayX and rayY
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mapBlockHitX = 0
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@ -260,9 +277,9 @@ class Main:
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mapX = int(rayX / MAP_SCALE)
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mapY = int(rayY / MAP_SCALE)
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mapArrayPosition = mapY * MAP_SIZE + mapX
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE and MAP[mapArrayPosition] != 0:
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE and MAP_WALLS[mapArrayPosition] != 0:
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dof = DOF # Hit the wall: we are done, no need to do other checks
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mapBlockHitY = MAP[mapArrayPosition] # Save which map wall tile we reached
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mapBlockHitY = MAP_WALLS[mapArrayPosition] # Save which map wall tile we reached
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else:
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# Didn't hit the wall: check successive horizontal line
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rayX = rayX + xOffset
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@ -302,9 +319,9 @@ class Main:
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mapX = int(rayX / MAP_SCALE)
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mapY = int(rayY / MAP_SCALE)
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mapArrayPosition = mapY * MAP_SIZE + mapX
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE-1 and MAP[mapArrayPosition] != 0:
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if mapArrayPosition >= 0 and mapArrayPosition < MAP_SIZE*MAP_SIZE-1 and MAP_WALLS[mapArrayPosition] != 0:
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dof = DOF # Hit the wall: we are done, no need to do other checks
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mapBlockHitX = MAP[mapArrayPosition] # Save which map wall tile we reached
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mapBlockHitX = MAP_WALLS[mapArrayPosition] # Save which map wall tile we reached
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else:
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# Didn't hit the wall: check successive horizontal line
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rayX = rayX + xOffset
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@ -331,6 +348,7 @@ class Main:
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# Center line vertically in window
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lineOffset = RAYCAST_RENDER_HEIGHT / 2 - lineHeight / 2
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# WALLS
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# Draw pixels vertically from top to bottom to obtain a line
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textureSegmentEnd = 0
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for textureColumnPixel in range(0, TEXTURE_SIZE):
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@ -363,14 +381,43 @@ class Main:
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lineStart = textureSegmentStart
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if lineStart < 0:
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lineStart = 0
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# Upscaling
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lineStart = lineStart * RAYCAST_RESOLUTION_SCALING
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lineEnd = lineEnd * RAYCAST_RESOLUTION_SCALING
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# Draw segment
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self.drawVertLineScaled(color, i, int(lineStart), int(lineEnd))
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# FLOOR
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if lineEnd >= RAYCAST_WIN_HEIGHT:
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continue
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wallLineEnd = int(lineEnd)
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for y in range(wallLineEnd, RAYCAST_RENDER_HEIGHT):
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dy = y - ( RAYCAST_WIN_HEIGHT / 2.0 )
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deg = rayAngle
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raFix = math.cos(self.angleBoudariesFix(playerAngle - rayAngle))
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tx = self.player_position["x"] / 2 + math.cos(deg) * (RAYCAST_RENDER_WIDTH / 2) * TEXTURE_SIZE / dy / raFix
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ty = self.player_position["y"] / 2 - math.sin(deg) * (RAYCAST_RENDER_HEIGHT / 2) * TEXTURE_SIZE / dy / raFix
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textureIndex = MAP_FLOORS[int(ty / TEXTURE_SIZE) * mapX + int(tx / TEXTURE_SIZE)] #* TEXTURE_SIZE * TEXTURE_SIZE
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texturePixelIndex = int(ty * TEXTURE_SIZE + tx)
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print("Texture index: {} pixel: {}".format(textureIndex, texturePixelIndex))
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color = TEXTURES[textureIndex][texturePixelIndex]
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self.drawPointScaled(color, i, y)
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def angleBoudariesFix(self, angle):
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if angle < 0:
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return math.pi * 2 + angle
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if angle > math.pi * 2:
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return angle - math.pi * 2
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def drawVertLineScaled(self, color, i, startY, endY):
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# Upscaling
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startY = startY * RAYCAST_RESOLUTION_SCALING
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endY = endY * RAYCAST_RESOLUTION_SCALING
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for repeat in range(1, RAYCAST_RESOLUTION_SCALING + 1):
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x = i * RAYCAST_RESOLUTION_SCALING + repeat
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sdl2.ext.draw.line(self.raycastSurface, color, (x, int(lineStart), x, int(lineEnd)))
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sdl2.ext.draw.line(self.raycastSurface, color, (x, startY, x, endY))
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def drawPointScaled(self, color, x, y):
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scaledX = int(x * RAYCAST_RESOLUTION_SCALING)
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scaledY = int(y * RAYCAST_RESOLUTION_SCALING)
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sdl2.ext.draw.fill(self.raycastSurface, color, (scaledX, scaledY, scaledX + RAYCAST_RESOLUTION_SCALING, scaledY + RAYCAST_RESOLUTION_SCALING))
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def dist(self, ax, ay, bx, by):
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return math.sqrt((bx-ax)*(bx-ax) + (by-ay)*(by-ay))
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