//
// MAIN: Using keyboard to move a sprite example
//
void initialize() {
u8* pvideomem; // Pointer to video memory
// Disable firmware to prevent it from interfering with setPalette and setVideoMode
cpct_disableFirmware();
// Set up the hardware palette using hardware colour values
cpct_setPalette(g_palette, 16);
cpct_setBorder(HW_BLACK);
// Set video mode 0 (160x200, 16 colours)
cpct_setVideoMode(0);
// Draw floor. As cpct_drawSolidBox cannot draw boxes wider than 63 bytes
// and Screen width is 80 bytes, we draw 2 boxes of SCR_W/2 (40 bytes) each
pvideomem = cpct_getScreenPtr(CPCT_VMEM_START, 0, FLOOR_Y);
cpct_drawSolidBox(pvideomem, FLOOR_COLOR, SCR_W/2, FLOOR_HEIGHT);
pvideomem = cpct_getScreenPtr(CPCT_VMEM_START, SCR_W/2, FLOOR_Y);
cpct_drawSolidBox(pvideomem, FLOOR_COLOR, SCR_W/2, FLOOR_HEIGHT);
// Draw instructions
pvideomem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 20);
cpct_drawStringM0(" Sprite Flip Demo ", pvideomem, 2, 0);
pvideomem = cpct_getScreenPtr(CPCT_VMEM_START, 0, 34);
cpct_drawStringM0("[Cursor]", pvideomem, 4, 0);
pvideomem = cpct_getScreenPtr(CPCT_VMEM_START, 40, 34);
cpct_drawStringM0("Left/Right", pvideomem, 3, 0);
}
//////////////////////////////////////////////////////////////////////////////
// Initialization of the CPC
// This function will be called once at the start of the program. After
// that, it won't be required anymore. Therefore, its code will be placed at
// 0x4000 to be used once and then removed when an image is written to
// this second video buffer (0x4000-0x7FFF)
///
void initializeCPC() {
cpct_disableFirmware(); // Disable the firmware not to interfere with us
cpct_setVideoMode(0); // Set mode 0 (160x200, 16 colours)
cpct_setPalette(g_palette, 16); // Set colour palette
cpct_setBorder(g_palette[0]); // Set the border with same colour used for background (0)
// Set up the main video buffer (0xC000) with a message and all colours set up
setUpVideoBuffer(VMEM_0, 0, "Main Screen Buffer", 6, 0);
}
void initCPC() {
cpct_disableFirmware();
cpct_fw2hw(g_palette,16);
cpct_fw2hw(g_palette2,16);
cpct_fw2hw(g_palette3,16);
cpct_setPalette(g_palette,16);
cpct_setBorder (g_palette[0]);
cpct_setVideoMode(0);
cpct_akp_musicInit(G_menu);
// cpct_akp_SFXInit (G_menu);
}
/////////////////////////////////////////////////////////////////////////
// Initialization routine
// Disables firmware, initializes palette and video mode and
// draws the background
//
void initialization (){
cpct_disableFirmware(); // Disable firmware to prevent it from interfering
cpct_setPalette(g_palette, 7); // Set palette using hardware colour values
cpct_setBorder (g_palette[0]); // Set border colour same as background (0)
cpct_setVideoMode(0); // Change to Mode 0 (160x200, 16 colours)
// Set the internal tileset for drawing Tilemaps
cpct_etm_setTileset2x4(g_tileset);
// Draw the background tilemap
cpct_etm_drawTilemap2x4_f(MAP_WIDTH_TILES, MAP_HEIGHT_TILES,
CPCT_VMEM_START, g_background);
}
//
// EXAMPLE: Measuring free cycles after moving an sprite
//
void main(void) {
u8 i; // Loop index
u8 x=0, y=0; // Sprite coordinates (in bytes)
u8* pvideomem = (u8*)0xC000; // Sprite initial video memory byte location (where it will be drawn)
u16 avc = 0; // Available cycles until next VSYNC, after all main loop calculations
// First, disable firmware to prevent it from intercepting our palette and video mode settings (and,
// at the same time, winning some speed not having to process firmware code at every interrupt)
cpct_disableFirmware();
// Set palette and Screen Border (transform firmware to hardware colours and then set them)
cpct_fw2hw (G_palette, 4);
cpct_setPalette(G_palette, 4);
cpct_setBorder (G_palette[1]);
// Ensure MODE 1 is set
cpct_setVideoMode(1);
// Main Loop
while(1) {
// First, wait VSYNC monitor signal to synchronize the loop with it. We'll start doing
// calculations always at the same time (when VSYNC is first detected)
cpct_waitVSYNC();
// Scan Keyboard and change sprite location if cursor keys are pressed
cpct_scanKeyboard_f();
if (cpct_isKeyPressed(Key_CursorRight) && x < 80 - SPR_W) { x++; pvideomem++; }
else if (cpct_isKeyPressed(Key_CursorLeft) && x > 0 ) { x--; pvideomem--; }
if (cpct_isKeyPressed(Key_CursorUp) && y > 0 ) { pvideomem -= (y-- & 7) ? 0x0800 : 0xC850; }
else if (cpct_isKeyPressed(Key_CursorDown) && y < 200 - SPR_H) { pvideomem += (++y & 7) ? 0x0800 : 0xC850; }
// Draw the sprite at its new location on screen.
// Sprite automatically erases previous copy of itself on the screen because it moves
// 1 byte at a time and has a 0x00 border that overwrites previous colours on that place
cpct_drawSprite(G_death, pvideomem, SPR_W, SPR_H);
// Wait to next VSYNC signal, calculating the amount of free cycles (time we wait for VSYNC)
// As documented on <cpct_count2VSYNC>, function returns number of loop iterations (L), and
// cycles shall be calculated doing 22 + 34*L
avc = 22 + 34 * cpct_count2VSYNC();
// Print 5 digits on the upper right corner of the screen,
// with the amount of free cycles calculated in previous step.
// Digits will be printed at screen locations (0xC046, 0xC048, 0xC04A, 0xC04C, 0xC04E)
for(i=0; i<5; i++) {
u8 digit = '0' + (avc % 10);
cpct_drawCharM1_f((void*)(0xC04E - 2*i), 3, 0, digit);
avc /= 10;
}
}
}
// Initialization of the Amstrad CPC at the start of the application
void initializeCPC() {
// Disable firmware: we dont want it to interfere with our code
cpct_disableFirmware();
// Set the function interruptHandler to be called on each interrupt.
cpct_setInterruptHandler(interruptHandler);
// Set the hardware palette (convert firmware colour values to hardware ones and set the palette)
cpct_fw2hw(G_palette, 16);
cpct_setPalette(G_palette, 16); // Descomentar estas tres lineas cuando tengamos paleta
cpct_setBorder(G_palette[0]);
// Change to Mode 0 (160x200, 16 colours)
cpct_setVideoMode(0);
}
//
// Draw CPCtelera's Logo (Mode 1)
//
void drawLogo() {
// Pointer to video memory location where the logo will be drawn
u8* pvideo;
// Clear the screen filling it up with 0's
cpct_clearScreen_f64(0);
// Set Mode 1 Logo palette and change to Mode 1
cpct_setPalette(G_logo_palette, 4);
cpct_setVideoMode(1);
// Draw CPCtelera's Logo as one unique sprite 160x191 pixels (40x191 bytes in mode 1)
// Remember: in Mode 1, 1 byte = 4 pixels
// Draw the sprite at screen byte coordinates (20, 4) (pixel coordinates (80, 4))
pvideo = cpct_getScreenPtr(SCR_VMEM, 20, 4);
cpct_drawSprite(G_CPCt_logo, pvideo, LOGO_W, LOGO_H);
}
//
// MAIN: Using keyboard to move a sprite example
//
void main(void) {
u8 x=10, y=10; // Sprite coordinates
u8* pvideomem; // Pointer to video memory
//
// Set up the screen
//
// Disable firmware to prevent it from interfering with setPalette and setVideoMode
cpct_disableFirmware();
// Set the colour palette
cpct_fw2hw (G_palette, 4); // Convert our palette from firmware to hardware colours
cpct_setPalette(G_palette, 4); // Set up the hardware palette using hardware colours
// Set video mode 1 (320x200, 4 colours)
cpct_setVideoMode(1);
//
// Infinite moving loop
//
while(1) {
// Scan Keyboard (fastest routine)
// The Keyboard has to be scanned to obtain pressed / not pressed status of
// every key before checking each individual key's status.
cpct_scanKeyboard_f();
// Check if user has pressed a Cursor Key and, if so, move the sprite if
// it will still be inside screen boundaries
if (cpct_isKeyPressed(Key_CursorRight) && x < (SCR_W - SP_W) ) ++x;
else if (cpct_isKeyPressed(Key_CursorLeft) && x > 0 ) --x;
if (cpct_isKeyPressed(Key_CursorUp) && y > 0 ) --y;
else if (cpct_isKeyPressed(Key_CursorDown) && y < (SCR_H - SP_H) ) ++y;
// Get video memory byte for coordinates x, y of the sprite (in bytes)
pvideomem = cpct_getScreenPtr(CPCT_VMEM_START, x, y);
// Draw the sprite in the video memory location got from coordinates x, y
cpct_drawSprite(G_spriteLogoCT, pvideomem, SP_W, SP_H);
}
}
/////////////////////////////////////////////////////////////////////////////////
// Machine initialization code
//
void initialize_CPC() {
// Initialize the application
cpct_disableFirmware(); // Firmware must be disabled for this application to work
cpct_setVideoMode(0); // Set Mode 0 (160x200, 16 Colours)
cpct_setPalette(g_palette, 13); // Set Palette
cpct_setBorder(HW_BLACK); // Set the border and background colours to black
// VERY IMPORTANT: Before using EasyTileMap functions (etm), the internal
// pointer to the tileset must be set.
cpct_etm_setTileset2x4(g_tileset);
// Clean up the screen
cpct_memset(CPCT_VMEM_START, 0x00, 0x4000);
// Draw the full tilemap for the first time
cpct_etm_drawTileBox2x4(0, 0, // (X, Y) upper-left corner of the tilemap
SCR_TILE_WIDTH, MAP_HEIGHT, // (Width, Height) of the Box to be drawn (all the screen)
MAP_WIDTH, // Width of the full tilemap (which is wider than the screen)
CPCT_VMEM_START, // Pointer to the start of video memory (upper-left corner of the
// ...tilemap in the screen)
g_tilemap); // Pointer to the first tile of the tilemap to be drawn (upper-left
// ... corner of the tilemap viewport window)
}
//
// Draw CPCtelera's Squared Banner (Mode 0)
//
void drawBanner() {
// Video memory pointers for the 2 sprites that form the Squared banner
u8 *pvideo_s1, *pvideo_s2;
// Clear the screen filling it up with 0's
cpct_clearScreen_f64(0);
// Set Mode 0 Squared Banner palette and change to Mode 0
cpct_setPalette (G_banner_palette, 16);
cpct_setVideoMode(0);
// Draw CPCtelera's Squared Banner in 2 parts of 80x96 pixels (40x96 bytes in mode 0)
// We have to draw it in two parts because cpct_drawSprite function cannot
// draw sprites wider than 63 bytes.
// Remember: in Mode 0, 1 byte = 2 pixels
// Draw left part at screen byte coordinates ( 0, 52) (pixel coordinates ( 0, 52))
pvideo_s1 = cpct_getScreenPtr(SCR_VMEM, 0, 52);
cpct_drawSprite(G_CPCt_left, pvideo_s1, BANNER_W, BANNER_H);
// Draw right part at screen byte coordinates (40, 52) (pixel coordinates (80, 52))
pvideo_s2 = cpct_getScreenPtr(SCR_VMEM, 40, 52);
cpct_drawSprite(G_CPCt_right, pvideo_s2, BANNER_W, BANNER_H);
}
