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Code Issues Releases Wiki Activity

Added zoom_masks

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This commit is contained in:
Duncan Frost
2014-08-12 08:02:18 +01:00
parent ffaeca1a1c
commit 9a33bc0597
1 changed files with 3 additions and 2 deletions
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5
src/gfx.c
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@@ -1057,10 +1057,11 @@ void gfx_draw_sprite_palette_set(rct_drawpixelinfo *dpi, int image_id, int x, in
//Its used super often so we will define it to a seperate variable.
int zoom_level = dpi->zoom_level;
uint16 zoom_mask = 0xFFFF << zoom_level;
//This will be the height of the drawn image
int height = g1_source->height >> zoom_level;
//This is the start y coordinate on the destination
sint16 dest_start_y = y - ((uint16)dpi->y) + g1_source->y_offset;
sint16 dest_start_y = zoom_mask & (y + g1_source->y_offset) - ((uint16)dpi->y);
//This is the start y coordinate on the source
int source_start_y = 0;
@@ -1095,7 +1096,7 @@ void gfx_draw_sprite_palette_set(rct_drawpixelinfo *dpi, int image_id, int x, in
//This is the source start x coordinate
int source_start_x = 0;
//This is the destination start x coordinate
sint16 dest_start_x = x - ((uint16)dpi->x) + g1_source->x_offset;
sint16 dest_start_x = zoom_mask & (x + g1_source->x_offset) - ((uint16)dpi->x);
if (dest_start_x < 0){
//If the destination is negative reduce the width