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#
# Code under the MIT license by Alexander R. Pruss
#
import sys
import time
import mcpi.minecraft as minecraft
ALIGN_LEFT = 0
ALIGN_RIGHT = 1
ALIGN_CENTER = 2
# vectors must be minecraft.Vec3
def drawGlyph(mc, pos, forwardVec, upVec, glyph, foreground, background=None, buffer=None):
bitmap = glyph[3]
height = len(bitmap)
width = glyph[0]
offset = glyph[1]
delta = glyph[2]
for i in range(height):
pixelPos = pos + upVec*(height-1-i) + forwardVec*offset
for j in range(width):
if foreground is not None and 0 != bitmap[i] & (1 << (width-1-j)):
if buffer is not None:
buffer[(pixelPos.x,pixelPos.y,pixelPos.z)] = foreground
else:
mc.setBlock(pixelPos, foreground)
elif background is not None and 0 == bitmap[i] & (1 << (width-1-j)):
if buffer is not None:
buffer[(pixelPos.x,pixelPos.y,pixelPos.z)] = background
else:
mc.setBlock(pixelPos, background)
pixelPos += forwardVec
return pos + forwardVec*delta
def textLength(font, text):
l = 0
for value in text:
try:
glyph = font[value]
except:
glyph = font[32]
l += glyph[2]
return l
def drawText(mc, font, pos, forwardVec, upVec, text, foreground=None, background=None, align=ALIGN_LEFT, buffer=None):
try:
text = bytearray(text.encode("cp1252"))
except:
text = bytearray(text.encode("iso8859_1"))
pixelPos = pos.clone()
height = len(font[32][3])
lines = text.split(b'\n')
pixelPos += upVec * ((len(lines)-1)* height)
lineStart = pixelPos.clone()
for line in lines:
pixelPos = lineStart.clone()
if align == ALIGN_RIGHT:
pixelPos -= forwardVec * textLength(font, line)
elif align == ALIGN_CENTER:
pixelPos -= forwardVec * (0.5 * textLength(font, line))
for value in line:
try:
glyph = font[value]
except:
glyph = font[32]
pixelPos = drawGlyph(mc, pixelPos, forwardVec, upVec, glyph, foreground, background, buffer)
lineStart += upVec * (-height)
return pixelPos
def angleToTextDirectionCardinal(angle):
return angleToTextDirection(90 * round(angle/90))
def angleToTextDirection(angle):
direction = int(round((angle % 360) / 45))
if direction == 0:
return minecraft.Vec3(-1,0,0)
elif direction == 1:
return minecraft.Vec3(-1,0,-1)
elif direction == 2:
return minecraft.Vec3(0,0,-1)
elif direction == 3:
return minecraft.Vec3(1,0,-1)
elif direction == 4:
return minecraft.Vec3(1,0,0)
elif direction == 5:
return minecraft.Vec3(1,0,1)
elif direction == 6:
return minecraft.Vec3(0,0,1)
else:
return minecraft.Vec3(-1,0,1)
if __name__ == '__main__':
import fonts
import mcpi.block as block
mc = minecraft.Minecraft()
pos = mc.player.getPos()
forward = angleToTextDirection(mc.player.getRotation())
foreground = 169 # sea lantern
background = block.OBSIDIAN
if len(sys.argv) <= 1:
text = "Hello, world!\nWelcome to Minecraft."
else:
del sys.argv[0]
text = " ".join(sys.argv)
drawText(mc, fonts.FONTS['metrix7pt'], pos, forward, minecraft.Vec3(0,1,0), text, foreground, background, align=ALIGN_RIGHT)
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