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ugfx/demos/applications/tetris/tetris.c

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December 2014 Winning Demo Competition Entry - Tetris
2015-01-21 03:42:47 +00:00
/*
* Copyright (c) 2015 Joel Bodenmann aka Tectu <joel@unormal.org>
* Copyright (c) 2015 Andrew Hannam aka inmarket
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This program was originally contributed by community member "Fleck" as
* the winning entry in the December 2014 demo competition.
*
* Some minor changes have been made by the uGFX maintainers.
*/
#include "gfx.h"
#include "stdlib.h"
#include "string.h"
#include "math.h"
#include "tetris.h"
#define SEVEN_SEG_HEIGHT SEVEN_SEG_SIZE*3
#define SEVEN_SEG_WIDTH SEVEN_SEG_HEIGHT*3
#define SEVEN_SEG_CHAR_WIDTH ((SEVEN_SEG_SIZE*4)+(SEVEN_SEG_HEIGHT*2)+SEVEN_SEG_WIDTH)
#define SEVEN_SEG_CHAR_HEIGHT ((SEVEN_SEG_SIZE*4)+(SEVEN_SEG_HEIGHT*3)+(SEVEN_SEG_WIDTH*2))
#define TETRIS_SEVEN_SEG_SCORE_X (TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)-(strlen(pps_str)*SEVEN_SEG_CHAR_WIDTH)+(SEVEN_SEG_CHAR_WIDTH*i)
// bit0 = A
// bit1 = B
// bit2 = C
// bit3 = D
// bit4 = E
// bit5 = F
// bit6 = G
// 7segment number array, starting from 0 (array index matches number)
// 7segment number:
/*
A
F B
G
E C
D
*/
const uint8_t sevenSegNumbers[10] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F}; // 0,1,2,3,4,5,6,7,8,9
const color_t tetrisShapeColors[9] = {Black, HTML2COLOR(0x009000), Red, Blue, Magenta, SkyBlue, Orange, HTML2COLOR(0xBBBB00), White}; // shape colors
// default tetris shapes
const int tetrisShapes[TETRIS_SHAPE_COUNT][4][2] = {
{{4, 17},{4, 16},{5, 16},{4, 15}},
{{4, 16},{5, 16},{4, 15},{5, 15}},
{{4, 17},{5, 16},{4, 16},{5, 15}},
{{5, 17},{5, 16},{4, 16},{4, 15}},
{{5, 17},{5, 16},{5, 15},{4, 15}},
{{4, 17},{4, 16},{4, 15},{5, 15}},
{{4, 18},{4, 17},{4, 16},{4, 15}}
};
int tetrisField[TETRIS_FIELD_HEIGHT][TETRIS_FIELD_WIDTH]; // main tetris field array
unsigned int tetrisGameSpeed = 500; // game auto-move speed in ms
unsigned int tetrisKeySpeed = 140; // game key repeat speed in ms
systemticks_t tetrisPreviousGameTime = 0;
systemticks_t tetrisPreviousKeyTime = 0;
int tetrisCurrentShape[4][2];
int tetrisNextShape[4][2];
int tetrisOldShape[4][2];
int tetrisNextShapeNum, tetrisOldShapeNum;
unsigned long tetrisLines = 0;
unsigned long tetrisScore = 0;
bool_t tetrisKeysPressed[5] = {FALSE, FALSE, FALSE, FALSE, FALSE}; // left/down/right/up/pause
bool_t tetrisPaused = FALSE;
bool_t tetrisGameOver = FALSE;
font_t font16;
font_t font12;
GEventMouse ev;
// static void initRng(void) { //STM32 RNG hardware init
// rccEnableAHB2(RCC_AHB2ENR_RNGEN, 0);
// RNG->CR |= RNG_CR_RNGEN;
// }
static void initRng(void) {
srand(gfxSystemTicks());
}
static int uitoa(unsigned int value, char * buf, int max) {
int n = 0;
int i = 0;
int tmp = 0;
if (!buf) return -3;
if (2 > max) return -4;
i=1;
tmp = value;
if (0 > tmp) {
tmp *= -1;
i++;
}
for (;;) {
tmp /= 10;
if (0 >= tmp) break;
i++;
}
if (i >= max) {
buf[0] = '?';
buf[1] = 0x0;
return 2;
}
n = i;
tmp = value;
if (0 > tmp) {
tmp *= -1;
}
buf[i--] = 0x0;
for (;;) {
buf[i--] = (tmp % 10) + '0';
tmp /= 10;
if (0 >= tmp) break;
}
if (-1 != i) {
buf[i--] = '-';
}
return n;
}
static void sevenSegDraw(int x, int y, uint8_t number, color_t color) {
if (number & 0x01) gdispFillArea(x+SEVEN_SEG_HEIGHT+SEVEN_SEG_SIZE, y, SEVEN_SEG_WIDTH, SEVEN_SEG_HEIGHT, color); // A
if (number & 0x02) gdispFillArea(x+SEVEN_SEG_HEIGHT+(SEVEN_SEG_SIZE*2)+SEVEN_SEG_WIDTH, y+SEVEN_SEG_HEIGHT+SEVEN_SEG_SIZE, SEVEN_SEG_HEIGHT, SEVEN_SEG_WIDTH, color); // B
if (number & 0x04) gdispFillArea(x+SEVEN_SEG_HEIGHT+(SEVEN_SEG_SIZE*2)+SEVEN_SEG_WIDTH, y+(SEVEN_SEG_HEIGHT*2)+SEVEN_SEG_WIDTH+(SEVEN_SEG_SIZE*3), SEVEN_SEG_HEIGHT, SEVEN_SEG_WIDTH, color); // C
if (number & 0x08) gdispFillArea(x+SEVEN_SEG_HEIGHT+SEVEN_SEG_SIZE, y+(SEVEN_SEG_HEIGHT*2)+(SEVEN_SEG_WIDTH*2)+(SEVEN_SEG_SIZE*4), SEVEN_SEG_WIDTH, SEVEN_SEG_HEIGHT, color); // D
if (number & 0x10) gdispFillArea(x, y+(SEVEN_SEG_HEIGHT*2)+SEVEN_SEG_WIDTH+(SEVEN_SEG_SIZE*3), SEVEN_SEG_HEIGHT, SEVEN_SEG_WIDTH, color); // E
if (number & 0x20) gdispFillArea(x, y+SEVEN_SEG_HEIGHT+SEVEN_SEG_SIZE, SEVEN_SEG_HEIGHT, SEVEN_SEG_WIDTH, color); // F
if (number & 0x40) gdispFillArea(x+SEVEN_SEG_HEIGHT+SEVEN_SEG_SIZE, y+SEVEN_SEG_HEIGHT+SEVEN_SEG_WIDTH+(SEVEN_SEG_SIZE*2), SEVEN_SEG_WIDTH, SEVEN_SEG_HEIGHT, color); // G
}
static void drawShape(uint8_t color) {
int i;
for (i = 0; i <= 3; i++) {
if (tetrisCurrentShape[i][1] <= 16 || tetrisCurrentShape[i][1] >= 19) {
gdispFillArea((tetrisCurrentShape[i][0]*TETRIS_CELL_WIDTH)+2, gdispGetHeight()-TETRIS_CELL_HEIGHT-(tetrisCurrentShape[i][1]*TETRIS_CELL_HEIGHT)-3, TETRIS_CELL_WIDTH-2, TETRIS_CELL_HEIGHT-2, tetrisShapeColors[color]);
if (color != 0) {
gdispDrawBox((tetrisCurrentShape[i][0]*TETRIS_CELL_WIDTH)+2, gdispGetHeight()-TETRIS_CELL_HEIGHT-(tetrisCurrentShape[i][1]*TETRIS_CELL_HEIGHT)-3, TETRIS_CELL_WIDTH-1, TETRIS_CELL_HEIGHT-1, tetrisShapeColors[8]);
} else {
gdispDrawBox((tetrisCurrentShape[i][0]*TETRIS_CELL_WIDTH)+2, gdispGetHeight()-TETRIS_CELL_HEIGHT-(tetrisCurrentShape[i][1]*TETRIS_CELL_HEIGHT)-3, TETRIS_CELL_WIDTH-1, TETRIS_CELL_HEIGHT-1, tetrisShapeColors[0]);
}
}
}
}
// static uint32_t randomInt(uint32_t max) { //getting random number from STM32 hardware RNG
// static uint32_t new_value=0;
// while ((RNG->SR & RNG_SR_DRDY) == 0) { }
// new_value=RNG->DR % max;
// return new_value;
// }
static uint32_t randomInt(uint32_t max) {
return rand() % max;
}
static void createShape(void) {
int i;
memcpy(tetrisNextShape, tetrisShapes[tetrisNextShapeNum], sizeof(tetrisNextShape)); // assign from tetrisShapes arr;
memcpy(tetrisCurrentShape, tetrisNextShape, sizeof(tetrisCurrentShape)); // tetrisCurrentShape = tetrisNextShape;
memcpy(tetrisOldShape, tetrisNextShape, sizeof(tetrisOldShape)); // tetrisOldShape = tetrisNextShape;
for (i = 0; i <= 3; i++) {
tetrisCurrentShape[i][0] += 7;
tetrisCurrentShape[i][1] -= 4;
}
drawShape(0);
tetrisOldShapeNum = tetrisNextShapeNum;
tetrisNextShapeNum = randomInt(TETRIS_SHAPE_COUNT);
memcpy(tetrisNextShape, tetrisShapes[tetrisNextShapeNum], sizeof(tetrisNextShape)); // assign from tetrisShapes arr;
memcpy(tetrisCurrentShape, tetrisNextShape, sizeof(tetrisCurrentShape)); // tetrisCurrentShape = tetrisNextShape;
for (i = 0; i <= 3; i++) {
tetrisCurrentShape[i][0] += 7;
tetrisCurrentShape[i][1] -= 4;
}
drawShape(tetrisNextShapeNum+1);
memcpy(tetrisCurrentShape, tetrisOldShape, sizeof(tetrisCurrentShape)); // tetrisCurrentShape = tetrisOldShape;
}
static void tellScore(uint8_t color) {
char pps_str[12];
uint8_t i;
uitoa(tetrisLines, pps_str, sizeof(pps_str));
gdispFillArea((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)+5, gdispGetHeight()-50, gdispGetStringWidth(pps_str, font16)+4, gdispGetCharWidth('A', font16)+2, tetrisShapeColors[0]);
gdispDrawString((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)+5, gdispGetHeight()-50, pps_str, font16, tetrisShapeColors[color]);
uitoa(tetrisScore, pps_str, sizeof(pps_str));
gdispFillArea(0, 0, gdispGetWidth(), gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-6, tetrisShapeColors[0]);
for (i = 0; i < strlen(pps_str); i++) {
if (pps_str[i] == '0') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[0], Lime);
if (pps_str[i] == '1') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[1], Lime);
if (pps_str[i] == '2') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[2], Lime);
if (pps_str[i] == '3') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[3], Lime);
if (pps_str[i] == '4') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[4], Lime);
if (pps_str[i] == '5') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[5], Lime);
if (pps_str[i] == '6') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[6], Lime);
if (pps_str[i] == '7') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[7], Lime);
if (pps_str[i] == '8') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[8], Lime);
if (pps_str[i] == '9') sevenSegDraw(TETRIS_SEVEN_SEG_SCORE_X, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-SEVEN_SEG_CHAR_HEIGHT-7, sevenSegNumbers[9], Lime);
}
}
static void initField(void) {
int i,j;
tellScore(0); // clear score
for (i = 0; i < TETRIS_FIELD_HEIGHT; i++) {
for (j = 0; j < TETRIS_FIELD_WIDTH; j++) {
tetrisField[i][j] = 0;
}
}
createShape();
drawShape(tetrisOldShapeNum+1);
tetrisLines = 0;
tetrisScore = 0;
tellScore(8);
}
static void drawCell(int x, int y, uint8_t color) {
gdispFillArea((x*TETRIS_CELL_WIDTH)+2, gdispGetHeight()-TETRIS_CELL_HEIGHT-(y*TETRIS_CELL_HEIGHT)-3, TETRIS_CELL_WIDTH-2, TETRIS_CELL_HEIGHT-2, tetrisShapeColors[color]);
if (color != 0) {
gdispDrawBox((x*TETRIS_CELL_WIDTH)+2, gdispGetHeight()-TETRIS_CELL_HEIGHT-(y*TETRIS_CELL_HEIGHT)-3, TETRIS_CELL_WIDTH-1, TETRIS_CELL_HEIGHT-1, tetrisShapeColors[8]);
} else {
gdispDrawBox((x*TETRIS_CELL_WIDTH)+2, gdispGetHeight()-TETRIS_CELL_HEIGHT-(y*TETRIS_CELL_HEIGHT)-3, TETRIS_CELL_WIDTH-1, TETRIS_CELL_HEIGHT-1, tetrisShapeColors[0]);
}
}
static void printText(uint8_t color) {
gdispDrawString((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)+TETRIS_CELL_WIDTH, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT), "Next", font16, tetrisShapeColors[color]);
gdispDrawString((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)+5, gdispGetHeight()-70, "Lines", font16, tetrisShapeColors[color]);
}
static void printPaused(void) {
if (tetrisPaused) gdispDrawString((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)+TETRIS_CELL_WIDTH, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)/2, "Paused!", font12, tetrisShapeColors[2]);
else gdispFillArea((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)+TETRIS_CELL_WIDTH, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)/2, gdispGetStringWidth("Paused!", font12)+4, gdispGetCharWidth('A', font12)+2, tetrisShapeColors[0]);
}
static void printGameOver(void) {
if (tetrisGameOver) gdispDrawString(((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)/2)-(gdispGetStringWidth("Game Over!", font12)/2), gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)/2, "Game Over!", font12, tetrisShapeColors[2]);
else gdispFillArea(((TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)/2)-(gdispGetStringWidth("Game Over!", font12)/2), gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)/2, gdispGetStringWidth("Game Over!", font12)+4, gdispGetCharWidth('A', font12)+2, tetrisShapeColors[0]);
}
static void printTouchAreas(void) {
gdispDrawStringBox(0, 0, gdispGetWidth(), gdispGetFontMetric(font16, fontHeight), "Touch Area's", font16, White, justifyCenter);
gdispDrawStringBox(0, 0, gdispGetWidth(), gdispGetHeight()/4, "Pause", font16, Grey, justifyCenter);
gdispDrawStringBox(0, gdispGetHeight()/4, gdispGetWidth(), gdispGetHeight()/2, "Rotate", font16, Grey, justifyCenter);
gdispDrawStringBox(0, gdispGetHeight()-(gdispGetHeight()/4), gdispGetWidth()/4, gdispGetHeight()/4, "Left", font16, Grey, justifyCenter);
gdispDrawStringBox(gdispGetWidth()/4, gdispGetHeight()-(gdispGetHeight()/4), gdispGetWidth()/2, gdispGetHeight()/4, "Down", font16, Grey, justifyCenter);
gdispDrawStringBox(gdispGetWidth()-(gdispGetWidth()/4), gdispGetHeight()-(gdispGetHeight()/4), gdispGetWidth()/4, gdispGetHeight()/4, "Right", font16, Grey, justifyCenter);
gdispDrawLine(0, gdispGetHeight()/4, gdispGetWidth()-1, gdispGetHeight()/4, Grey);
gdispDrawLine(0, gdispGetHeight()-gdispGetHeight()/4, gdispGetWidth()-1, gdispGetHeight()-gdispGetHeight()/4, Grey);
gdispDrawLine(gdispGetWidth()/4, gdispGetHeight()-gdispGetHeight()/4, gdispGetWidth()/4, gdispGetHeight()-1, Grey);
gdispDrawLine(gdispGetWidth()-(gdispGetWidth()/4), gdispGetHeight()-gdispGetHeight()/4, gdispGetWidth()-(gdispGetWidth()/4), gdispGetHeight()-1, Grey);
}
static bool_t stay(bool_t down) {
int sk, k;
bool_t stay;
if (down == TRUE) sk = 1; else sk = 0;
stay = FALSE;
for (k = 0; k <= 3; k++) {
if (tetrisCurrentShape[k][1] == 0) {
return TRUE;
}
}
for (k = 0; k <= 3; k++) {
if ((tetrisCurrentShape[k][0] < 0) || (tetrisCurrentShape[k][0] > 9)) return TRUE;
if (tetrisCurrentShape[k][1] <= 16)
if (tetrisField[tetrisCurrentShape[k][1]-sk][tetrisCurrentShape[k][0]] != 0) return TRUE;
}
return stay;
}
static void clearCompleteLines(void) {
bool_t t;
uint8_t reiz = 0;
int l,k,j;
l = 0;
while (l <= 16) {
t = TRUE;
for (j = 0; j <= 9; j++)
if (tetrisField[l][j] == 0) t = FALSE;
if (t == TRUE) {
for (j = 4; j >= 0; j--) { // cheap & dirty line removal animation :D
drawCell(j,l, 0);
drawCell(9-j,l, 0);
gfxSleepMilliseconds(40);
}
reiz++;
for (k = 0; k <= 9; k++) {
for (j = l; j < 16; j++) {
tetrisField[j][k] = tetrisField[j+1][k];
drawCell(k,j, tetrisField[j][k]);
}
}
for (j = 0; j <= 9; j++) {
tetrisField[16][j] = 0;
drawCell(j,16,0);
}
} else {
l++;
}
}
if (reiz > 0) {
tetrisLines += reiz;
tetrisScore += (reiz*10)*reiz;
tellScore(8);
}
}
static void goDown(void) {
int i;
if (stay(TRUE) == FALSE) {
drawShape(0);
for (i = 0; i <= 3; i++) {
tetrisCurrentShape[i][1]--;
}
drawShape(tetrisOldShapeNum+1);
} else {
for (i = 0; i <= 3; i++) {
if (tetrisCurrentShape[i][1] >=17) {
tetrisGameOver = TRUE;
return;
} else {
tetrisField[tetrisCurrentShape[i][1]][tetrisCurrentShape[i][0]] = tetrisOldShapeNum+1;
}
}
clearCompleteLines();
createShape();
if (stay(FALSE) == TRUE) {
tetrisGameOver = TRUE;
return;
}
drawShape(tetrisOldShapeNum+1);
}
}
static void clearField(void) {
int j, k;
for (k = 16; k >= 0; k--) {
for (j = 0; j <= 9; j++) {
drawCell(j,16-k, randomInt(8)+1);
gfxSleepMilliseconds(10);
}
}
for (k = 0; k <= 16; k++) {
for (j = 0; j <= 9; j++) {
drawCell(j,16-k, tetrisShapeColors[0]);
gfxSleepMilliseconds(10);
}
}
}
static void rotateShape(void) {
int i, ox, oy, tx, ty;
ox = tetrisCurrentShape[1][0];
oy = tetrisCurrentShape[1][1];
memcpy(tetrisOldShape, tetrisCurrentShape, sizeof(tetrisOldShape)); // tetrisOldShape = tetrisCurrentShape;
for (i = 0; i <= 3; i++) {
tx = tetrisCurrentShape[i][0];
ty = tetrisCurrentShape[i][1];
tetrisCurrentShape[i][0] = ox+(round((tx-ox)*cos(90*(3.14/180))-(ty-oy)*sin(90*(3.14/180))));
tetrisCurrentShape[i][1] = oy+(round((tx-ox)*sin(90*(3.14/180))+(ty-oy)*cos(90*(3.14/180))));
}
if (stay(FALSE) == FALSE) {
memcpy(tetrisNextShape, tetrisCurrentShape, sizeof(tetrisNextShape)); // tetrisNextShape = tetrisCurrentShape;
memcpy(tetrisCurrentShape, tetrisOldShape, sizeof(tetrisCurrentShape)); // tetrisCurrentShape = tetrisOldShape;
drawShape(0);
memcpy(tetrisCurrentShape, tetrisNextShape, sizeof(tetrisCurrentShape)); // tetrisCurrentShape = tetrisNextShape;
drawShape(tetrisOldShapeNum+1);
} else {
memcpy(tetrisCurrentShape, tetrisOldShape, sizeof(tetrisCurrentShape)); // tetrisCurrentShape = tetrisOldShape;
}
}
static bool_t checkSides(bool_t left) {
int sk,k;
if (left == TRUE) sk = 1; else sk = -1;
for (k = 0; k <= 3; k++) {
if ((tetrisCurrentShape[k][0]+sk < 0) || (tetrisCurrentShape[k][0]+sk > 9)) return TRUE;
if (tetrisCurrentShape[k][1] <= 16)
if (tetrisField[tetrisCurrentShape[k][1]][tetrisCurrentShape[k][0]+sk] != 0) return TRUE;
}
return FALSE;
}
static void goRight(void) {
int i;
if (checkSides(TRUE) == FALSE) {
drawShape(0);
for (i = 0; i <= 3; i++) {
tetrisCurrentShape[i][0]++;
}
drawShape(tetrisOldShapeNum+1);
}
}
static void goLeft(void) {
int i;
if (checkSides(FALSE) == FALSE) {
drawShape(0);
for (i = 0; i <= 3; i++) {
tetrisCurrentShape[i][0]--;
}
drawShape(tetrisOldShapeNum+1);
}
}
static DECLARE_THREAD_FUNCTION(thdTetris, arg) {
(void)arg;
uint8_t i;
while (!tetrisGameOver) {
// key handling
if (gfxSystemTicks() - tetrisPreviousKeyTime >= gfxMillisecondsToTicks(tetrisKeySpeed) || gfxSystemTicks() <= gfxMillisecondsToTicks(tetrisKeySpeed)) {
for (i = 0; i < sizeof(tetrisKeysPressed); i++) {
if (tetrisKeysPressed[i] == TRUE) {
tetrisKeysPressed[i] = FALSE;
}
}
tetrisPreviousKeyTime = gfxSystemTicks();
}
// auto-move part :D
ginputGetMouseStatus(0, &ev);
if (gfxSystemTicks() - tetrisPreviousGameTime >= gfxMillisecondsToTicks(tetrisGameSpeed) || gfxSystemTicks() <= gfxMillisecondsToTicks(tetrisGameSpeed)) {
if ((!(ev.buttons & GINPUT_MOUSE_BTN_LEFT) || ((ev.buttons & GINPUT_MOUSE_BTN_LEFT) && !(ev.x > gdispGetWidth()/4 && ev.x <= gdispGetWidth()-(gdispGetWidth()/4) && ev.y >= gdispGetHeight()-(gdispGetHeight()/4)))) && !tetrisPaused) goDown(); // gives smooth move_down when down button pressed! :D
tetrisPreviousGameTime = gfxSystemTicks();
}
if (!(ev.buttons & GINPUT_MOUSE_BTN_LEFT)) continue;
if (ev.x <= gdispGetWidth()/4 && ev.y >= gdispGetHeight()-(gdispGetHeight()/4) && tetrisKeysPressed[0] == FALSE && !tetrisPaused) {
goLeft();
tetrisKeysPressed[0] = TRUE;
tetrisPreviousKeyTime = gfxSystemTicks();
}
if (ev.x > gdispGetWidth()-(gdispGetWidth()/4) && ev.y >= gdispGetHeight()-(gdispGetHeight()/4) && tetrisKeysPressed[2] == FALSE && !tetrisPaused) {
goRight();
tetrisKeysPressed[2] = TRUE;
tetrisPreviousKeyTime = gfxSystemTicks();
}
if (ev.y > gdispGetHeight()/4 && ev.y < gdispGetHeight()-(gdispGetHeight()/4) && tetrisKeysPressed[3] == FALSE && !tetrisPaused) {
rotateShape();
tetrisKeysPressed[3] = TRUE;
tetrisPreviousKeyTime = gfxSystemTicks();
}
if (ev.x > gdispGetWidth()/4 && ev.x <= gdispGetWidth()-(gdispGetWidth()/4) && ev.y >= gdispGetHeight()-(gdispGetHeight()/4) && tetrisKeysPressed[1] == FALSE && !tetrisPaused) {
goDown();
tetrisKeysPressed[1] = TRUE;
tetrisPreviousKeyTime = gfxSystemTicks();
}
if (ev.y <= gdispGetHeight()/4 && tetrisKeysPressed[4] == FALSE) {
tetrisKeysPressed[4] = TRUE;
tetrisPaused = !tetrisPaused;
printPaused();
tetrisPreviousKeyTime = gfxSystemTicks();
}
}
return (threadreturn_t)0;
}
static void tetrisDeinit(void) {
gdispCloseFont(font16);
gdispCloseFont(font12);
}
void tetrisStart(void) {
// Show the help first
gdispClear(Black);
printTouchAreas();
gfxSleepMilliseconds(3000);
// Draw the board
gdispClear(Black);
gdispDrawBox(0, gdispGetHeight()-(TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)-5, (TETRIS_FIELD_WIDTH*TETRIS_CELL_WIDTH)+3, (TETRIS_FIELD_HEIGHT*TETRIS_CELL_HEIGHT)+3, White);
printText(8);
// Away we go
initField();
tetrisGameOver = FALSE;
printGameOver(); // removes "Game Over!" if tetrisGameOver == FALSE
tetrisPreviousGameTime = gfxSystemTicks();
gfxThreadCreate(0, 1024, NORMAL_PRIORITY, thdTetris, 0);
while (!tetrisGameOver) {
gfxSleepMilliseconds(1000);
}
clearField();
printGameOver();
tetrisDeinit();
}
void tetrisInit(void) {
initRng();
tetrisNextShapeNum = randomInt(TETRIS_SHAPE_COUNT);
font16 = gdispOpenFont("DejaVuSans16");
font12 = gdispOpenFont("DejaVuSans12");
}
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