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#include "game-state.h"
#include <stdlib.h>
/* const int ENEMY_COUNT_MAX = 1000; */
/* const int TOWER_COUNT_MAX = 5; */
const enemy_spawner_t DEFAULT_ENEMY_SPAWNER = {
.border = { .x = 0, .y = 0, .width = WINDOW_WIDTH, .height = WINDOW_HEIGHT },
.cooldown = 100.0f,
.cooldown_max = 100.0f
};
float mouse_x(gs_t *gs){
Camera2D *cam = &gs->player.camera;
return cam->target.x + GetMouseX() - cam->offset.x;
}
float mouse_y(gs_t *gs){
Camera2D *cam = &gs->player.camera;
return cam->target.y + GetMouseY() - cam->offset.y;
}
void add_tower(gs_t *gs, tower_t tower){
if (gs->tower_count == TOWER_COUNT_MAX){
return;
}
gs->towers[gs->tower_count++] = tower;
}
void add_enemy(gs_t *gs, enemy_t enemy){
if (gs->enemy_count == ENEMY_COUNT_MAX){
return;
}
gs->enemies[gs->enemy_count++] = enemy;
}
void add_beam(gs_t *gs, tower_beam_t beam){
if (gs->beam_count == MAX_BEAM_COUNT){
return;
}
gs->beams[gs->beam_count++] = beam;
}
void kill_enemy(gs_t *gs, int index){
/* enemy_t temp = gs->enemies[index]; */
gs->enemies[index].active = 0;
gs->enemies[index] = gs->enemies[gs->enemy_count - 1];
/* gs->enemies[gs->enemy_count] = temp; */
gs->enemy_count--;
/* printf("enemy <%d> killed\n", index); */
}
void update_game(gs_t *gs, float dt){
update_player(&gs->player, dt);
for (int i = 0; i < gs->enemy_count; i++){
update_enemy(gs->enemies + i, gs->player.position, dt);
}
for (int i = 0; i < gs->tower_count; i++){
update_tower(&gs->towers[i], dt);
}
for (int i = 0; i < gs->tower_count; i++){
tower_t *tow = &gs->towers[i];
if (tow->cooldown <= 0){
for (int j = 0; j < gs->enemy_count; j++){
enemy_t *e = &gs->enemies[j];
if /* (distance(gs->towers[i].center, gs->enemies[j].center) */
/* < gs->towers[i].range) */
(e->active && CheckCollisionCircleRec(tow->center, tow->range, e->hitbox)){
add_beam(gs, make_beam(tow->position,
/* gs->enemies[j].center */
e->position, 0.1));
e->health -= tow->damage;
tow->cooldown = tow->cooldown_max;
PlaySound(BEAM_SOUND);
if (e->health <= 0){
kill_enemy(gs, j);
}
break;
}
}
}
}
for (int i = 0; i < gs->enemy_count; i++){
if (CheckCollisionRecs(gs->enemies[i].hitbox, gs->player.hitbox)){
int remaining = take_damage(&gs->player, 1);
if (remaining == 0){
Camera2D camera = gs->player.camera;
gs->player = make_player(&textures[T_PLAYER]);
gs->player.camera.zoom = camera.zoom;
}
/* printf("collision\n"); */
}
}
for (int i = 0; i < gs->beam_count; i++){
gs->beams[i].live_time -= dt;
if (gs->beams[i].live_time <= 0){
gs->beams[i] = gs->beams[gs->beam_count];
gs->beam_count--;
}
}
if (can_spawn(&gs->spawner) && gs->enemy_count < ENEMY_COUNT_MAX){
add_enemy(gs, spawn_enemy(&gs->spawner));
}
update_spawner(&gs->spawner, dt);
if (IsKeyPressed(KEY_T)){
add_tower(gs, make_tower(1, 100, mouse_x(gs), mouse_y(gs), 20, 30, &textures[T_TOWER]));
}
if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) {
paint_tile(gs);
}
}
void draw_game(gs_t *gs){
draw_player(&gs->player);
for (int i = 0; i < gs->tower_count; i++){
draw_tower(gs->towers + i);
}
for (int i = 0; i < gs->enemy_count; i++){
draw_enemy(gs->enemies + i);
}
for (int i = 0; i < gs->beam_count; i++){
DrawLineV(gs->beams[i].src, gs->beams[i].dest, MAGENTA);
}
/* if (IsKeyDown(KEY_E)){ */
/* } */
DrawCircle(mouse_x(gs), mouse_y(gs), 5, VIOLET);
}
void paint_tile(gs_t *gs){
float zoom = gs->player.camera.zoom;
float edge_len = 16 / zoom;
Camera2D *c = &gs->player.camera;
int edge = edge_len * c->zoom;
int x = mouse_x(gs) / edge;
int y = (WINDOW_HEIGHT - mouse_y(gs)) / edge;
/* int y = (GetMouseY() - gs.player.camera.target.y) / edge_len; */
printf("drawing tile(%d, %d) at %d %d\n", x, y, x * edge, y * edge);
if /* (x >= 0 && x < WINDOW_WIDTH && y >= 0 && y < WINDOW_HEIGHT) */
(1){
BeginTextureMode(gs->bg_tiles);
DrawTextureRec(gs->textures[T_DIRT], (Rectangle){ 0, 0, 16, 16 },
(Vector2){x * edge /* / zoom */, y * edge /* / zoom */}
/* (Vector2){0, edge_len * yy} */
, WHITE);
EndTextureMode();
/* yy++; */
}
}
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