/////////////////////////////////////////////////////////////////
// draw
// Draws the map completely. It displays a message down the
// screen while drawing to inform the user.
//
void map_draw() {
static u8* const string = "Drawing Map";
u8 x, y;
u8* pmem;
// Draw a message down the screen to inform the user
// that the map is drawing
pmem = cpct_getScreenPtr(CPCT_VMEM_START, 30, 160);
cpct_drawStringM1(string, pmem, C_BLACK, C_RED);
// Draw the map tile by tile
for(y=0; y < MAP_HEIGHT; y++)
for(x=0; x < MAP_WIDTH; x++)
map_drawTile(x, y);
// Remove the message that was informing the user
// (Drawing the string with background colour)
cpct_drawStringM1(string, pmem, C_BLACK, C_BLACK);
}
void drawMessages() {
u8 i;
// Define the strings for the messages as an array to
// be able to draw them in a single loop
static u8* const strings[NUM_MSGS] = {
"[Cursors]" ,"Move"
,"[Space]" ,"Draw/Remove"
,"[Escape]" ,"Clear"
};
// Define the properties of the messages that will be drawn:
// (x,y) location, Foreground colour (fg) and Background Colour (bg)
static const u8 msg_prop[NUM_MSGS][4] = {
// x, y, fg, bg
//----------------------------
{ 20, 0, C_RED , C_BLACK }, // Message 0
{ 40, 0, C_BLUE, C_BLACK }, // Message 1
{ 20, 16, C_RED , C_BLACK }, // Message 2
{ 40, 16, C_BLUE, C_BLACK }, // Message 3
{ 20, 32, C_RED , C_BLACK }, // Message 4
{ 40, 32, C_BLUE, C_BLACK } // Message 5
};
// Draw all messages in a single loop, using propertis of each message
for(i=0; i < NUM_MSGS; i++) {
u8* pmem;
// Get Location where next message should be drawn using
// message properties 0 and 1 (x and y coordinates)
pmem = cpct_getScreenPtr(CPCT_VMEM_START, msg_prop[i][0], msg_prop[i][1]);
// Draw the i-th message with colours from its properties 2 and 3 (fg, bg)
cpct_drawStringM1(strings[i], pmem, msg_prop[i][2], msg_prop[i][3]);
}
}
// This example is built at 0x8000, so we can page at 0x4000.
// See the build configuration.
void main(void) {
u8* pvmem; // Pointer to video memory
u8* firstByteInPage = (u8*) 0x4000;
u8 i;
cpct_pageMemory(RAMCFG_0 | BANK_0); // Not needed, sets the memory with the first 64kb accesible, in consecutive banks.
// firstByteInPage point to address 0x4000. With this memory
// configuration, that is physical address 0x4000.
*firstByteInPage = cpct_px2byteM1(1, 1, 1, 1); // Set the first byte in page to all pixels with colour 1 (yellow by default).
cpct_pageMemory(RAMCFG_4 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_4: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_4, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_4,
// which is physical address 0x10000.
*firstByteInPage = cpct_px2byteM1(2, 2, 2, 2); // Set the first byte in page to all pixels with colour 2 (cyan by default ).
cpct_pageMemory(RAMCFG_5 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_5: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_5, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_5,
// which is physical address 0x14000.
*firstByteInPage = cpct_px2byteM1(3, 3, 3, 3); // Set the first byte in page to all pixels with colour 3 (red by default ).
cpct_pageMemory(RAMCFG_6 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_6: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_6, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_6,
// which is physical address 0x18000.
*firstByteInPage = cpct_px2byteM1(1, 1, 2, 2); // Set the first byte in page to all pixels with colours 1, 2 (yellow, cyan by default ).
cpct_pageMemory(RAMCFG_7 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
// RAMCFG_7: 0000-3FFF -> RAM_0, 4000-7FFF -> RAM_7, 8000-BFFF -> RAM_2, C000-FFFF -> RAM_3
// firstByteInPage point to address 0x4000. With this memory
// configuration, 0x4000 is the first byte in BANK_0, RAM_7,
// which is physical address 0x1C000.
*firstByteInPage = cpct_px2byteM1(1, 1, 3, 3); // Set the first byte in page to all pixels with colours 1, 3 (yellow, cyan by default ).
cpct_pageMemory(RAMCFG_0 | BANK_0); // Set the memory again to default state
// Clear Screen
cpct_memset(CPCT_VMEM_START, 0, 0x4000);
// Let's make visible the values we stored.
cpct_pageMemory(RAMCFG_0 | BANK_0); // Not needed, sets the memory with the first 64kb accesible, in consecutive banks.
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 0);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 0);
cpct_drawStringM1("RAMCFG_0", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_4 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 16);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 16);
cpct_drawStringM1("RAMCFG_4", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_5 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 32);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 32);
cpct_drawStringM1("RAMCFG_5", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_6 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 48);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 48);
cpct_drawStringM1("RAMCFG_6", pvmem, 1, 0);
cpct_pageMemory(RAMCFG_7 | BANK_0); // Set the 4th page (64kb to 80kb) in 0x4000-0x7FFF
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 64);
cpct_drawSolidBox(pvmem, *firstByteInPage, 2, 8);
pvmem = cpct_getScreenPtr(CPCT_VMEM_START, 4, 64);
cpct_drawStringM1("RAMCFG_7", pvmem, 1, 0);
cpct_pageMemory(DEFAULT_MEM_CFG); // Equivalent to RAMCFG_0 | BANK_0
// Loop forever
while (1);
}
