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Entities must be added to grid based on their centre.

This commit is contained in:
Steve 2015-11-02 13:19:54 +00:00
parent 950cffcb4f
commit 61068f04f4
1 changed files with 8 additions and 8 deletions
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16
src/battle/grid.c
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@ -28,10 +28,10 @@ void addToGrid(Entity *e)
GridCell *cell, *prev; GridCell *cell, *prev;
int x, y, x1, y1, x2, y2; int x, y, x1, y1, x2, y2;
x1 = e->x / GRID_CELL_WIDTH; x1 = (e->x - e->w / 2) / GRID_CELL_WIDTH;
y1 = e->y / GRID_CELL_HEIGHT; y1 = (e->y - e->h / 2) / GRID_CELL_HEIGHT;
x2 = (e->x + e->w) / GRID_CELL_WIDTH; x2 = (e->x + e->w / 2) / GRID_CELL_WIDTH;
y2 = (e->y + e->h) / GRID_CELL_HEIGHT; y2 = (e->y + e->h / 2) / GRID_CELL_HEIGHT;
for (x = x1 ; x <= x2 ; x++) for (x = x1 ; x <= x2 ; x++)
{ {
@ -61,10 +61,10 @@ void removeFromGrid(Entity *e)
GridCell *cell, *prev; GridCell *cell, *prev;
int x, y, x1, y1, x2, y2; int x, y, x1, y1, x2, y2;
x1 = e->x / GRID_CELL_WIDTH; x1 = (e->x - e->w / 2) / GRID_CELL_WIDTH;
y1 = e->y / GRID_CELL_HEIGHT; y1 = (e->y - e->h / 2) / GRID_CELL_HEIGHT;
x2 = (e->x + e->w) / GRID_CELL_WIDTH; x2 = (e->x + e->w / 2) / GRID_CELL_WIDTH;
y2 = (e->y + e->h) / GRID_CELL_HEIGHT; y2 = (e->y + e->h / 2) / GRID_CELL_HEIGHT;
for (x = x1 ; x <= x2 ; x++) for (x = x1 ; x <= x2 ; x++)
{ {