Malmo Minecraft AI Simple Replace Block

replace_block.py

# ------------------------------------------------------------------------------------------------
# Copyright (c) 2016 Microsoft Corporation
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
# associated documentation files (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge, publish, distribute,
# sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all copies or
# substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# ------------------------------------------------------------------------------------------------

# Tutorial sample #2: Run simple mission using raw XML

import MalmoPython
import os
import sys
import time

sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)  # flush print output immediately

# More interesting generator string: "3;7,44*49,73,35:1,159:4,95:13,35:13,159:11,95:10,159:14,159:6,35:6,95:6;12;"

missionXML='''<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
            <Mission xmlns="http://ProjectMalmo.microsoft.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            
              <About>
                <Summary>Hello world!</Summary>
              </About>
              
              <ServerSection>
              <ServerInitialConditions>
                <Time>
                    <StartTime>1000</StartTime>
                    <AllowPassageOfTime>false</AllowPassageOfTime>
                </Time>
                <Weather>clear</Weather>
              </ServerInitialConditions>
                <ServerHandlers>
                  <FlatWorldGenerator generatorString="3;7,61*1,5*3,2;3;,biome_1"/>
                  <ServerQuitFromTimeUp timeLimitMs="10000"/>
                  <ServerQuitWhenAnyAgentFinishes/>
                </ServerHandlers>
              </ServerSection>
              
              <AgentSection mode="Survival">
                <Name>MalmoTutorialBot</Name>
                <AgentStart>
                    <Inventory>
                        <InventoryBlock type="diamond_block" quantity="1" slot="0"/>
                        <InventoryItem slot="8" type="diamond_pickaxe"/>
                    </Inventory>
                </AgentStart>
                <AgentHandlers>
                  <ObservationFromFullStats/>
                  <ContinuousMovementCommands turnSpeedDegs="180"/>
                  <InventoryCommands/>
                </AgentHandlers>
              </AgentSection>
            </Mission>'''

# Create default Malmo objects:

agent_host = MalmoPython.AgentHost()
try:
    agent_host.parse( sys.argv )
except RuntimeError as e:
    print 'ERROR:',e
    print agent_host.getUsage()
    exit(1)
if agent_host.receivedArgument("help"):
    print agent_host.getUsage()
    exit(0)

my_mission = MalmoPython.MissionSpec(missionXML, True)
my_mission_record = MalmoPython.MissionRecordSpec()

# Attempt to start a mission:
max_retries = 3
for retry in range(max_retries):
    try:
        agent_host.startMission( my_mission, my_mission_record )
        break
    except RuntimeError as e:
        if retry == max_retries - 1:
            print "Error starting mission:",e
            exit(1)
        else:
            time.sleep(2)

# Loop until mission starts:
print "Waiting for the mission to start ",
world_state = agent_host.getWorldState()
while not world_state.is_mission_running:
    sys.stdout.write(".")
    time.sleep(0.1)
    world_state = agent_host.getWorldState()
    for error in world_state.errors:
        print "Error:",error.text

print
print "Mission running ",

# Select Diamond Pickaxe
agent_host.sendCommand("hotbar.9 1")
agent_host.sendCommand("hotbar.9 0")

agent_host.sendCommand("pitch 0.2") # Start looking downward slowly
# Stop Looking down
time.sleep(1)
agent_host.sendCommand("pitch 0")

# Start Attacking the Ground
agent_host.sendCommand("move 1")
time.sleep(1)
agent_host.sendCommand("move 0")
agent_host.sendCommand("attack 1")

# Stop Attacking
time.sleep(1.2)
agent_host.sendCommand("attack 0")

# Switch to Diamond Block
agent_host.sendCommand("hotbar.1 1")
agent_host.sendCommand("hotbar.1 0")
agent_host.sendCommand("use 1")
agent_host.sendCommand("use 0")


# Loop until mission ends:
while world_state.is_mission_running:
    sys.stdout.write(".")
    time.sleep(0.1)
    world_state = agent_host.getWorldState()
    for error in world_state.errors:
        print "Error:",error.text

print
print "Mission ended"
# Mission has ended.

This puts Karel The Robot to shame!