forked from kdx/jtmm2-old
99 lines
2.0 KiB
C
99 lines
2.0 KiB
C
#include <gint/defs/types.h>
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#include <stdbool.h>
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#include "collide.h"
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#include "conf.h"
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#include "level.h"
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uint8_t collide_point(Vec point, const Level *level, uint layer_id)
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{
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Vec cursor; /* the final position to test */
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vec_cpy(&cursor, point);
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vec_div(&cursor, TILE_SIZE); /* get the expected tile ID */
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if (point.x < 0 || point.y < 0 ||
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cursor.x >= level->width || cursor.y >= level->height)
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{
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return 0; /* the point is out of bounds */
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}
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else
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{
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return level->layers[layer_id][cursor.x + cursor.y * level->width];
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}
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}
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_Bool collide_right(Player *player, Vec position, const Level *level, uint layer_id)
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{
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Vec pos;
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vec_cpy(&pos, position);
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vec_sub(&pos, player->origin);
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pos.x += player->hbox.x;
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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pos.y += player->hbox.y;
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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return false;
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}
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_Bool collide_left(Player *player, Vec position, const Level *level, uint layer_id)
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{
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Vec pos;
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vec_cpy(&pos, position);
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vec_sub(&pos, player->origin);
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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pos.y += player->hbox.y;
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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return false;
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}
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_Bool collide_down(Player *player, Vec position, const Level *level, uint layer_id)
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{
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Vec pos;
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vec_cpy(&pos, position);
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vec_sub(&pos, player->origin);
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pos.y += player->hbox.y;
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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pos.x += player->hbox.x;
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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return false;
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}
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_Bool collide_up(Player *player, Vec position, const Level *level, uint layer_id)
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{
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Vec pos;
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vec_cpy(&pos, position);
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vec_sub(&pos, player->origin);
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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pos.x += player->hbox.x;
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if (collide_point(pos, level, layer_id))
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{
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return true;
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}
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return false;
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}
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_Bool collide_full(Player *player, Vec position, const Level *level, uint layer_id)
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{
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return collide_up(player, position, level, layer_id) ||
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collide_down(player, position, level, layer_id);
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}
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