kdx
/
lzy
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

drawtileex

This commit is contained in:
KikooDX 2022-03-27 14:56:31 +02:00
parent 2cb24f14fa
commit f2911ceebd
2 changed files with 83 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

79
inc/lzy.h
View File

@ -93,6 +93,8 @@ int LZY_DrawLine(int x0, int y0, int x1, int y1);
int LZY_DrawRect(int x, int y, unsigned int w, unsigned int h);
int LZY_DrawFillRect(int x, int y, unsigned int w, unsigned int h);
int LZY_DrawTile(unsigned int id, int x, int y);
int LZY_DrawTileEx(unsigned int id, int x, int y, unsigned int w,
unsigned int h);
int LZY_DrawChar(unsigned char chr, int x, int y);
int LZY_DrawText(const char *text, int x, int y);
LZY_Music *LZY_MusicLoad(const char *path);
@ -311,6 +313,41 @@ int LZY_DrawTile(unsigned int id, int x, int y) {
#endif
}
int LZY_DrawTileEx(unsigned int id, int x, int y, unsigned int w,
unsigned int h) {
#ifndef LZY_GINT_TILESET
LZY_UNUSED(id);
LZY_UNUSED(x);
LZY_UNUSED(y);
LZY_UNUSED(w);
LZY_UNUSED(h);
return -1;
#else
extern bopti_image_t LZY_GINT_TILESET;
int ix, iy;
if (w * h == 0)
return -1;
x += draw_off_x;
y += draw_off_y;
ix = id % tset_width;
iy = id / tset_width;
if (ix >= (int)tset_width || ix + w - 1 >= tset_width ||
iy >= (int)tset_height || iy + h - 1 >= tset_height)
return -1;
ix *= LZY_TILE_SIZE;
iy *= LZY_TILE_SIZE;
dsubimage(x, y, &LZY_GINT_TILESET, ix, iy, w * LZY_TILE_SIZE,
h * LZY_TILE_SIZE, DIMAGE_NONE);
return 0;
#endif
}
int LZY_DrawChar(unsigned char chr, int x, int y) {
#ifndef LZY_GINT_FONT
LZY_UNUSED(chr);
@ -776,6 +813,48 @@ int LZY_DrawTile(unsigned int id, int x, int y) {
return 0;
}
int LZY_DrawTileEx(unsigned int id, int x, int y, unsigned int w,
unsigned int h) {
SDL_Rect src, dst;
if (w * h == 0) {
error = "tile size can't be 0";
return -1;
}
if (id >= (unsigned int)(tset_width * tset_height)) {
error = "id exceeds boundaries";
return -1;
}
src.x = id % tset_width;
src.y = id / tset_width;
if (src.x >= tset_width || src.x + w - 1 >= (unsigned int)tset_width ||
src.y >= tset_height ||
src.y + h - 1 >= (unsigned int)tset_height) {
error = "tile is not in tileset";
return -1;
}
src.x *= LZY_TILE_SIZE;
src.y *= LZY_TILE_SIZE;
src.w = w * LZY_TILE_SIZE;
src.h = h * LZY_TILE_SIZE;
dst.x = x;
dst.y = y;
dst.w = w * LZY_TILE_SIZE;
dst.h = h * LZY_TILE_SIZE;
if (SDL_RenderCopy(renderer, tset, &src, &dst) < 0) {
error = SDL_GetError();
return -1;
}
return 0;
}
int LZY_DrawChar(unsigned char chr, int x, int y) {
const unsigned int id = (unsigned int)chr - LZY_FIRST_CHR;
SDL_Rect src, dst;

5
src/main.c
View File

@ -46,7 +46,10 @@ int main(int argc, const char **argv) {
LZY_DrawLine(x, y, 0, 0);
/* draw player */
LZY_DrawTile(1, x, y);
if (LZY_DrawTileEx(1, x, y, 3, 2))
LZY_Log(LZY_GetError());
if (LZY_DrawTile(1, x, y))
LZY_Log(LZY_GetError());
}
LZY_DrawEnd();
}