Block support

[Secret-chest]

Support Scratch blocks. More will be added when these are about to be finished.

Note: Rotation is rendered but blocks using it are not supported, so no linked issue.

• when flag clicked
• set x/y
• change x/y
• go to x, y
• x position (nneds Reporter functionality #5)
• y position (needs Reporter functionality #5)
• point in direction
• point towards mouse
• point towards sprite
• turn left
• turn right
• direction (needs Reporter functionality #5)
• go to mouse
• mouse x (needs Reporter functionality #5)
• mouse y (needs Reporter functionality #5)
• wait seconds
• wait until
• go to sprite
• when key pressed (needs Keypress support #7)
• key pressed? (needs Keypress support #7, Reporter functionality #5)
• if then
• if then else
• repeat until
• repeat
• forever
• set size
• change size
• variable (needs Reporter functionality #5, Variable support #6)
• set variable (needs Variable support #6)
• change variable (needs Variable support #6)
• touching? (needs Reporter functionality #5)
• touching color? (needs Reporter functionality #5)
• equals (needs Reporter functionality #5)
• greater than (needs Reporter functionality #5)
• less than (needs Reporter functionality #5)
• + (needs Reporter functionality #5)
• - (needs Reporter functionality #5)
• * (needs Reporter functionality #5)
• / (needs Reporter functionality #5)
• mod (needs Reporter functionality #5)
• random (needs Reporter functionality #5)
• go to random