f256/f256lib/f_tile.c
2024-03-27 19:54:24 -05:00

146 lines
3.6 KiB
C

/*
* Copyright (c) 2024 Scott Duensing, scott@kangaroopunch.com
*
* 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.
*/
#ifndef WITHOUT_TILE
#ifndef F256LIB_AMALGAMATED_BUILD
#include "f_tile.h"
#endif
static byte _tileSize[3];
void tileDefineTileMap(byte t, uint32_t address, byte tileSize, uint16_t mapSizeX, uint16_t mapSizeY) {
// Map size is 10 bits. Docs are wrong.
_tileSize[t] = tileSize;
switch (t) {
case 0:
POKEA(VKY_TM0_ADDR_L, address);
POKEW(VKY_TM0_SIZE_X, mapSizeX);
POKEW(VKY_TM0_SIZE_Y, mapSizeY);
break;
case 1:
POKEA(VKY_TM1_ADDR_L, address);
POKEW(VKY_TM1_SIZE_X, mapSizeX);
POKEW(VKY_TM1_SIZE_Y, mapSizeY);
break;
case 2:
POKEA(VKY_TM2_ADDR_L, address);
POKEW(VKY_TM2_SIZE_X, mapSizeX);
POKEW(VKY_TM2_SIZE_Y, mapSizeY);
break;
}
tileSetScroll(t, 0, 0, 0, 0);
}
void tileDefineTileSet(byte t, uint32_t address, bool square) {
switch (t) {
case 0:
POKEA(VKY_TS0_ADDR_L, address);
POKE(VKY_TS0_SQUARE, square << 3);
break;
case 1:
POKEA(VKY_TS1_ADDR_L, address);
POKE(VKY_TS1_SQUARE, square << 3);
break;
case 2:
POKEA(VKY_TS2_ADDR_L, address);
POKE(VKY_TS2_SQUARE, square << 3);
break;
case 3:
POKEA(VKY_TS3_ADDR_L, address);
POKE(VKY_TS3_SQUARE, square << 3);
break;
case 4:
POKEA(VKY_TS4_ADDR_L, address);
POKE(VKY_TS4_SQUARE, square << 3);
break;
case 5:
POKEA(VKY_TS5_ADDR_L, address);
POKE(VKY_TS5_SQUARE, square << 3);
break;
case 6:
POKEA(VKY_TS6_ADDR_L, address);
POKE(VKY_TS6_SQUARE, square << 3);
break;
case 7:
POKEA(VKY_TS7_ADDR_L, address);
POKE(VKY_TS7_SQUARE, square << 3);
break;
}
}
void tileSetScroll(byte t, byte xPixels, uint16_t xTiles, byte yPixels, uint16_t yTiles) {
uint16_t scrollX = (xTiles << 4) + xPixels;
uint16_t scrollY = (yTiles << 4) + yPixels;
switch (t) {
case 0:
POKEW(VKY_TM0_POS_X_L, scrollX);
POKEW(VKY_TM0_POS_Y_L, scrollY);
break;
case 1:
POKEW(VKY_TM1_POS_X_L, scrollX);
POKEW(VKY_TM1_POS_Y_L, scrollY);
break;
case 2:
POKEW(VKY_TM2_POS_X_L, scrollX);
POKEW(VKY_TM2_POS_Y_L, scrollY);
break;
}
}
void tileSetVisible(byte t, bool v) {
switch (t) {
case 0:
POKE(VKY_TM0_CTRL, ((_tileSize[0] == 8 ? 1 : 0) << 4) | v);
break;
case 1:
POKE(VKY_TM1_CTRL, ((_tileSize[1] == 8 ? 1 : 0) << 4) | v);
break;
case 2:
POKE(VKY_TM2_CTRL, ((_tileSize[2] == 8 ? 1 : 0) << 4) | v);
break;
}
}
void tileReset(void) {
// All maps 8x8 by default.
_tileSize[0] = 8;
_tileSize[1] = 8;
_tileSize[2] = 8;
// Hide all tilemaps.
tileSetVisible(0, false);
tileSetVisible(1, false);
tileSetVisible(2, false);
}
#endif