class RenderWorld:
'''This is the class that renders blocks (and the floor that they sit on). Camera angles are handled by another class'''
WINDOW_WIDTH = 400
WINDOW_HEIGHT = 400
def __init__(self, file_name):
'''Sets everything up: camera, modes, lighting, and the list of blocks'''
self.camera = Camera()
self.set_up_graphics()
self.makeLights()
self.objects = LoadWorld.load(file_name)
# glMaterialfv(GL_FRONT, GL_SPECULAR, [1, 1, 1, 1])
# glMaterialfv(GL_FRONT, GL_SHININESS, [50])
glClearColor(.529,.8078,.980,0)
glutDisplayFunc(self.display)
glutKeyboardFunc(self.keyPressed)
glutMainLoop()
def set_up_graphics(self):
'''Sets up the gl modes that are necessary'''
glutInit()
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH)
glutInitWindowSize(self.WINDOW_WIDTH, self.WINDOW_HEIGHT)
glutCreateWindow('World!')
glMatrixMode(GL_PROJECTION)
gluPerspective(45,1,.15,100)
glMatrixMode(GL_MODELVIEW)
glEnable(GL_DEPTH_TEST)
def makeLights(self):
'''Sets up the light sources and their positions. We have an ambient light and two sets of specular/diffuse lights'''
self.diffuse_pos1 = (50,5,0,1)
glLightfv(GL_LIGHT0, GL_DIFFUSE, (.5, .5, .5, 1))
glLightfv(GL_LIGHT0, GL_POSITION, self.diffuse_pos1)
glLightfv(GL_LIGHT1, GL_AMBIENT, (.2, .2, .2, 1))
glLightfv(GL_LIGHT1, GL_POSITION, (0, 0, 1, 0))
glLightfv(GL_LIGHT2, GL_SPECULAR, (.8, .8, .8, 1))
glLightfv(GL_LIGHT2, GL_POSITION, self.diffuse_pos1)
self.diffuse_pos2 = (0,1,0,1)
glLightfv(GL_LIGHT3, GL_DIFFUSE, (.5, .5, .5, 1))
glLightfv(GL_LIGHT3, GL_POSITION, self.diffuse_pos2)
glLightfv(GL_LIGHT4, GL_SPECULAR, (.8, .8, .8, 1))
glLightfv(GL_LIGHT4, GL_POSITION, self.diffuse_pos2)
glEnable(GL_LIGHTING)
glEnable(GL_LIGHT0)
glEnable(GL_LIGHT1)
glEnable(GL_LIGHT2)
def display(self, x=0, y=0):
'''Called for every refresh; redraws the floor and blocks and based on the camera angle'''
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
self.camera.renderCamera()
self.renderLightSource()
self.makeFloor()
#Transparent blocks!
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
for obj in self.objects:
glPushMatrix()
if obj.get_type() == "block":
self.draw_block(obj)
elif obj.get_type() == "key":
self.draw_key(obj)
glPopMatrix()
glDisable(GL_BLEND)
glFlush()
def draw_block(self, obj):
#Set the blocks shininess, ambient, diffuse, and specular reflections. The blocks are slightly transparent.
color = obj.get_color()
pos = obj.get_pos()
#glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, 75)
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, [color[0], color[1], color[2], 1])
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, [.4, .4, .4, 1])
#glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, [.9, .9, .9, .7])
glTranslate(pos[0],pos[1],pos[2])
glutSolidCube(2)
def draw_key(self, obj):
color = obj.get_color()
pos = obj.get_pos()
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, [color[0], color[1], color[2], .7])
glTranslate(pos[0],pos[1],pos[2])
#glutSolidTorus(.05, .25, 3, 3)
glutSolidCone(.1, 2.0, 30, 4)
def keyPressed(self, key, x, y):
'''Called when a key is pressed'''
if key == 'a':
self.camera.strafe(-.1)
elif key == 'd':
self.camera.strafe(.1)
elif key == 'w':
self.camera.walk(-.1)
elif key == 's':
self.camera.walk(.1)
elif key == 'j':
self.camera.rotate(0,3,0)
elif key == 'l':
self.camera.rotate(0,-3,0)
elif key == 'i':
self.camera.rotate(3,0,0)
elif key == 'k':
self.camera.rotate(-3,0,0)
elif key == ' ':
self.camera.height(.1)
elif key == 'c':
self.camera.height(-.1)
self.display()
def renderLightSource(self):
'''Resets the light sources to the right position'''
glLightfv(GL_LIGHT0, GL_POSITION, self.diffuse_pos1)
glLightfv(GL_LIGHT2, GL_POSITION, self.diffuse_pos2)
glLightfv(GL_LIGHT3, GL_POSITION, self.diffuse_pos2)
glLightfv(GL_LIGHT4, GL_POSITION, self.diffuse_pos2)
def makeFloor(self):
'''Makes a floor of size size and places an image (texture) on it'''
glEnable(GL_TEXTURE_2D)
size = 50
image = Image.open("OtherMods/checkerboard.bmp")
ix = image.size[0]
iy = image.size[1]
image = image.tostring("raw", "RGBX", 0, -1)
glPixelStorei(GL_UNPACK_ALIGNMENT,1)
glTexImage2D(GL_TEXTURE_2D, 0, 3, ix, iy, 0, GL_RGBA, GL_UNSIGNED_BYTE, image)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL)
glBegin(GL_QUADS)
glTexCoord2f(0.0, 0.0) ; glVertex(-size,-.5,-size)
glTexCoord2f(1.0, 0.0) ; glVertex(size,-.5,-size)
glTexCoord2f(1.0, 1.0) ; glVertex(size,-.5,size)
glTexCoord2f(0.0, 1.0) ; glVertex(-size,-.5,size)
glEnd()
glDisable(GL_TEXTURE_2D)
