hier der c code. was dich interessiert wirst du in DrawScene() finden. leider hab ich nurnoch eine sehr alte version. die hier ist ein bischen unsauber und käsig, dafür aber auch gradezu winzig, weil ich da grade erst am anfang des programmes war.
sollte aber demonstrieren was zu tun ist. was hier fehlt ist code, der mit einem gewissen radius verhindert das der spieler zu nah an wände kommt, denn das führt zu fehlern in der darstellungsreihenfolge, wobei der spieler dann auch tatsächlich schon in der wand wäre. es gibt noch andere lösungen für dieses problem, aber ich denke, die ist die einfachste.
noch einfacher ist aber, dass ganze gleich in opengl zu machen und die darstellungsreihenfolge dem zbuffer zu überlassen
Code: Alles auswählen
#include "allegro.h"
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
int tileW=36,tileH=19;
int wallH=120;
int scrW=800,scrH=600;
int displayWidth=22,displayHeight=22;
int camX=0,camY=0;
int mouseX,mouseY;
int mapX,mapY;
int mapMouseX,mapMouseY;
int charaX,charaY;
int mouseOverTileX,mouseOverTileY;
int mouseOverTile=0;
int map[1024][1024];
BITMAP *backBuffer, *testTile, *testWall, *selector, *mouse_pointer, *chara;
PALETTE mainPalette;
void DrawScene(){
int x,y;
int drawx,drawy;
//blit(testTile,backBuffer,0,0,0,0,tile_w,tile_h);
//draw tiles
for(y=0;y<displayHeight;y++){
for(x=0;x<displayWidth;x++){
//masked_blit(testTile,backBuffer,0,0, x*tile_w-18, (y/2)*(tile_h+1)-10 , tile_w, tile_h);
//masked_blit(testTile,backBuffer,0,0, x*tile_w+18-18 , y/2*(tile_h+1)+10-10 , tile_w, tile_h);
drawx=x*(tileW/2)-(y*(tileW/2))+(scrW/2-tileW/2);
drawy=y*(tileH/2)+(x*(tileH/2));
if(map[x+camX][y+camY]<100)
masked_blit(testTile,backBuffer,0,0, drawx, drawy , tileW, tileH);
//else
// masked_blit(testWall,backBuffer,0,0, drawx, drawy-(wallH-tileH) , tileW, wallH);
}
}
int cdrawx,cdrawy,cposx,cposy;
cposx=charaX/36;
cposy=charaY/38;
//draw walls
for(y=0;y<displayHeight;y++){
for(x=0;x<displayWidth;x++){
//masked_blit(testTile,backBuffer,0,0, x*tile_w-18, (y/2)*(tile_h+1)-10 , tile_w, tile_h);
//masked_blit(testTile,backBuffer,0,0, x*tile_w+18-18 , y/2*(tile_h+1)+10-10 , tile_w, tile_h);
drawx=x*(tileW/2)-(y*(tileW/2))+(scrW/2-tileW/2);
drawy=y*(tileH/2)+(x*(tileH/2));
if(map[x+camX][y+camY]>=100)
masked_blit(testWall,backBuffer,0,0, drawx, drawy-(wallH-tileH) , tileW, wallH);
if(cposx-camX==x&&cposy-camY==y){
cdrawx=0;
cdrawy=0;
cdrawx=(charaX/36)*(tileW/2)-((charaY/38)*(tileW/2))+(scrW/2-tileW/2);
cdrawy=(charaY/38)*(tileH/2)+((charaX/36)*(tileH/2));
float addx,addy;
addx=charaX%36;
addy=charaY%38;
masked_blit(chara,backBuffer,0,0, drawx+(int)((addx-addy)/2), drawy-80+(int)((addy/2+addx/2)/2),41, 98);
}
}
}
if(mouseOverTile==1){
drawx=0;
drawy=0;
drawx=mouseOverTileX*(tileW/2)-(mouseOverTileY*(tileW/2))+(scrW/2-tileW/2);
drawy=mouseOverTileY*(tileH/2)+(mouseOverTileX*(tileH/2));
masked_blit(selector,backBuffer,0,0, drawx, drawy , tileW, tileH);
}
//text_mode(-1);
textprintf(backBuffer, font, 10, 10, makecol(255,255,255),"camX: %d, camY: %d ",camX,camY );
textprintf(backBuffer, font, 10, 20, makecol(255,255,255),"mapMouseX: %d, mapMouseY: %d ",mapMouseX,mapMouseY );
textprintf(backBuffer, font, 10, 40, makecol(255,255,255),"charaMapX: %d, charaMapY: %d ",charaX/36,charaY/38 );
masked_blit(mouse_pointer,backBuffer,0,0,mouseX,mouseY,11,19);
}
void LoadMap(){
FILE *fp;
fp = fopen("test.map","r");
if(fp!=NULL){
fread(map,sizeof(map),1,fp);
fclose(fp);
}else{
allegro_message("Could not load map!\n%s\n", allegro_error);
}
}
void SaveMap(){
FILE *fp;
fp = fopen("test.map","w");
if(fp!=NULL){
fwrite(map,sizeof(map),1,fp);
fclose(fp);
}else{
allegro_message("Could not write map!\n%s\n", allegro_error);
}
}
void GetIO(){
if(key[KEY_RIGHT]){
camX++;
if(camX>1024-displayWidth)
camX=1024-displayWidth;
}
if(key[KEY_LEFT]){
camX--;
if(camX<0)
camX=0;
}
if(key[KEY_DOWN]){
camY++;
if(camY>1024-displayHeight)
camY=1024-displayHeight;
}
if(key[KEY_UP]){
camY--;
if(camY<0)
camY=0;
}
//if(key[KEY_S]){
// SaveMap();
//}
if(key[KEY_L]){
LoadMap();
}
if(key[KEY_PRTSCR]){
save_bmp("screen_shot.bmp", backBuffer, mainPalette);
}
/////
if(key[KEY_D]){
charaX++;
//if(camX>1024-displayWidth)
// camX=1024-displayWidth;
}
if(key[KEY_A]){
charaX--;
if(charaX<0)
charaX=0;
}
if(key[KEY_S]){
charaY++;
/*if(camY>1024-displayHeight)
camY=1024-displayHeight;*/
}
if(key[KEY_W]){
charaY--;
if(charaY<0)
charaY=0;
}
/////
mouseX = mouse_x;
mouseY = mouse_y;
float mouseXN = mouse_x-scrW/2-tileW/2;
//mouseio
//mapMouseX=((mouseX-scrW/2-tileW/2)/tileW)+(mouseY/tileH);
//mapMouseY=(mouseY/tileH )-((mouseX-scrW/2-tileW/2)/tileW);
float ftileW=tileW-1.0;
float ftileH=tileH-1.0;
float ftileWH=floor((ftileW)/2);
float scrWH=(scrW/2);
float fmouseX=mouseX;
float fmouseY=mouseY;
mapMouseX=((fmouseX-scrWH-ftileWH)/(ftileW-1))+(fmouseY/ftileH)+1;
mapMouseY=(fmouseY/(ftileH ))-((fmouseX-scrWH-ftileWH)/ftileW);
mouseOverTileX = mapMouseX;
mouseOverTileY = mapMouseY;
if(mouseOverTileX>=0&&mouseOverTileX<22&&mouseOverTileY>=0&&mouseOverTileY<22)
mouseOverTile=1;
else
mouseOverTile=0;
}
int main(void){
allegro_init();
install_keyboard();
install_mouse();
set_color_depth(32);
if (set_gfx_mode(GFX_AUTODETECT_WINDOWED, scrW, scrH, 0, 0) != 0) {
set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
allegro_message("Unable to set any graphic mode\n%s\n", allegro_error);
return 1;
}
set_palette(desktop_palette);
backBuffer = create_bitmap(scrW,scrH);
testTile = load_bmp("tile.bmp",mainPalette);
testWall = load_bmp("wall.bmp",mainPalette);
selector = load_bmp("selector.bmp",mainPalette);
mouse_pointer = load_bmp("mouse.bmp",mainPalette);
chara = load_bmp("elsatest.bmp",mainPalette);
while(!key[KEY_ESC]){
GetIO();
clear_to_color(backBuffer, makecol(50, 50, 255));
DrawScene();
vsync();
acquire_screen();
blit(backBuffer,screen,0,0,0,0,scrW,scrH);
release_screen();
}
return 0;
}
END_OF_MAIN();
