diff options
Diffstat (limited to 'src/engine/entity.c')
-rw-r--r-- | src/engine/entity.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/engine/entity.c b/src/engine/entity.c new file mode 100644 index 0000000..535759d --- /dev/null +++ b/src/engine/entity.c @@ -0,0 +1,127 @@ +#include <stdbool.h> + +#include "engine/entity.h" +#include "engine/maths.h" + +/* + PLAYER: (pos on X) + ,___, + | | + | X | + |___| + +*/ + +bool hh_collision(vec_cor pos1, vec2 pos2){ + if (pos2.x == CLAMP(pos2.x, pos1.x, pos1.x+16)){// hit x + return true; + } + + if (pos2.y == CLAMP(pos2.y, pos1.y, pos1.y+16)){// hit y + return true; + } + return false; +} + +void hh_solve_collision(vec2 pos_environment, hh_entity* entity){ + if (!hh_collision(pos_environment,entity->pos)) + return; + + printf("BONK!/n"); + // if (entity->vel.y > 0){ + // entity->pos.y = MAX(entity->pos.y,pos_environment.y); + // entity->vel.y = 0; + // } else { + // entity->pos.y = MIN(entity->pos.y,pos_environment.y); + // entity->vel.y = 0; + // } + // if (entity->vel.x <= 0){ + // entity->pos.x = MIN(entity->pos.x,pos_environment.x-16); + // entity->vel.x = 0; + // } else { + // entity->pos.x = MAX(entity->pos.x,pos_environment.x+16); + // entity->vel.x = 0; + // } +} +hh_entity hh_background_collision (hh_entity temp_old_entity,hh_entity temp_new_entity){ + + temp_old_entity.is_grounded = false; + +// solves x collision + if (temp_old_entity.vel.x <= 0) { + if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_old_entity.pos.y + 0})) || + hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_old_entity.pos.y + 15}))) { + temp_new_entity.pos.x = (temp_new_entity.pos.x & ~15) + 16, + temp_new_entity.vel.x = 0; + } + } else { + if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 16, .y=temp_old_entity.pos.y + 0})) || + hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 16, .y=temp_old_entity.pos.y + 15}))) { + temp_new_entity.pos.x = temp_new_entity.pos.x & ~15, // <-- magic comma, NOT TOUCHY + temp_new_entity.vel.x = 0; + } + } + + //solves y collision + if (temp_old_entity.vel.y <= 0) { + if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_new_entity.pos.y + 0})) || + hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 15, .y=temp_new_entity.pos.y + 0}))) { + temp_new_entity.pos.y = (temp_new_entity.pos.y & ~15) + 16, + temp_new_entity.vel.y = 0; + } + } else { + if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_new_entity.pos.y + 15})) || + hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 15, .y=temp_new_entity.pos.y + 15}))) { + temp_new_entity.pos.y = temp_new_entity.pos.y & ~15, + temp_new_entity.vel.y = 0; + temp_old_entity.is_grounded = true; + } + } + temp_old_entity.pos = temp_new_entity.pos; + temp_old_entity.vel = temp_new_entity.vel; + return temp_old_entity; +} + +hh_entity hh_enemy_collision(hh_entity temp_player, hh_entity temp_enemy){ + + bool collide = hh_distance_circles( temp_player.pos, temp_enemy.pos, temp_player.radius, temp_enemy.radius); + + if (collide == true && temp_player.is_hit == false) + { + temp_player.is_hit = true; + //angle = atan2( tempEntity.pos_y - tempPlayer.pos_y, tempEntity.pos_x - tempPlayer.pos_x); + if(temp_player.pos.x <= temp_enemy.pos.x) //player left of enemy -- creates flinch movement L or R + { + // printf("BONK-left!/n"); + temp_player.vel.y = -5; + temp_player.vel.x = -8; + } else { + // printf("BONK-right!/n"); + temp_player.vel.y = -5; + temp_player.vel.x = 8; + } + // ghost mode / invulnerable or other things on hit + // temp_player.hp--; + + } else { + temp_player.is_hit = false; + + } + + +return temp_player; +} + + +bool hh_distance_circles (vec2 object_1, vec2 object_2, int radius_1, int radius_2){ + int a_squared = (object_1.x - object_2.x) * (object_1.x - object_2.x); + int b_squared = (object_1.y - object_2.y) * (object_1.y - object_2.y); + int c_squared = a_squared + b_squared; + int radius = ( radius_1 + radius_2) * ( radius_1 + radius_2 ); + + if( c_squared <= radius ){ + return true; + } else { + return false; + } +} |