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Routines |
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Used by the routine at DrawNextObject.
Draws an object into the screen buffer. An object that has the graphic number 01 is removed instead, by making it null.
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| DrawObject | D704 | LD A,(IX+$00) | Fetch the graphic number and test whether it is the one that removes the object. | |||||
| D707 | CP $01 | |||||||
| D709 | JR NZ,DrawNextObject_Draw | Jump to DrawNextObject_Draw if it is not. | ||||||
| D70B | LD (IX+$00),$00 | Make the graphic number null. | ||||||
| D70F | RET | Return. | ||||||
| DrawNextObject_Draw | D710 | RES 4,(IX+$07) | Flag the object as not to be drawn. | |||||
| D714 | CALL CalculatePixelCoordinates | Work out the pixel coordinates. | ||||||
| D717 | RET NC | Return if the sprite is off the top of the screen. | ||||||
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Continue on to PrintSprite.
View the equivalent code in;
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