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Routines |
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Handles a portcullis that is moving. A portcullis that is coming down is deadly. It speeds up as it falls until it hits the floor, and the sound of a portcullis is played. One that is going up moves at a speed of 2 until it is 31 above the floor of the room. When it is done the portcullis stops, and the next one is free to start.
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Fall and speed up, or rise, until the portcullis is done.
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| HandleMovingPortcullis | 50877 | CALL SetPixelAdjustments_Legs | Set the pixel adjustments of the bottom half of a guard. | |||||
| 50880 | SET 7,(IX+13) | Make the portcullis deadly. | ||||||
| 50884 | LD A,(23572) | Fetch the counter and flags of the player. | ||||||
| 50887 | AND %11110000 | Keep the counter that runs when the player enters the room. | ||||||
| 50889 | RET NZ | Return if the player has only just entered the room. | ||||||
| 50890 | LD A,(IX+11) | Fetch the speed in Z. | ||||||
| 50893 | AND A | Test it. | ||||||
| 50894 | JP P,HandleMovingPortcullis_Rise | Jump to HandleMovingPortcullis_Rise if the portcullis is going up. | ||||||
| 50897 | DEC (IX+11) | Increase the speed of the fall. | ||||||
| 50900 | CALL ApplyGravityAndMove | Apply gravity to the portcullis and move it. | ||||||
| 50903 | BIT 2,(IX+12) | Jump to SetWipeAndDrawFlags if the portcullis has not hit the floor. | ||||||
| 50907 | JR Z,SetWipeAndDrawFlags | |||||||
| 50909 | CALL PlayRandomNoise | Play the sound of a portcullis. | ||||||
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Stop the portcullis and free the next one to start.
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| HandleMovingPortcullis_Stop | 50912 | XOR A | Clear A. | |||||
| 50913 | LD (23471),A | Flag that no portcullis is moving at PortcullisMovingFlag. | ||||||
| 50916 | RES 0,(IX+0) | Change the graphic of the portcullis to the stationary one. | ||||||
| 50920 | JR SetWipeAndDrawFlags | Jump to SetWipeAndDrawFlags. | ||||||
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Rise until the portcullis is 31 above the floor.
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| HandleMovingPortcullis_Rise | 50922 | LD (IX+11),2 | Set the speed in Z to 2. | |||||
| 50926 | CALL PlaySoundFromPosition | Play the sound of a moving object. | ||||||
| 50929 | CALL ApplyGravityAndMove | Apply gravity to the portcullis and move it. | ||||||
| 50932 | LD A,(23470) | Fetch the Z coordinate of the floor of the room from FloorHeight. | ||||||
| 50935 | ADD A,31 | Add 31 to it. | ||||||
| 50937 | CP (IX+3) | Compare it with the Z coordinate of the portcullis. | ||||||
| 50940 | JR NC,SetWipeAndDrawFlags | Jump to SetWipeAndDrawFlags if the portcullis has not yet reached the top. | ||||||
| 50942 | JR HandleMovingPortcullis_Stop | Jump to HandleMovingPortcullis_Stop to stop it. | ||||||
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