ZZY
b5b2c90e75
- 重构了游戏引擎的核心逻辑和架构 - 添加了新的实体组件系统(ECS) - 实现了简单的碰撞检测和响应 - 新增了地图和子弹功能 - 优化了输入处理和渲染逻辑 - 调整了游戏控制方式
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include "config.h"
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#include "ge_color.h"
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#include "entities/entities.h"
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typedef struct {
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int score;
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ge_entity_t* player;
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ge_entity_t* bullets[MAX_BULLET];
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ge_render_rect_t screen;
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ge_entity_t* tilemap;
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} game_ctx_t;
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void collision_response(
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void* _ctx,
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ge_entity_t* entity_from,
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ge_entity_t* entity_to,
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const ge_vector2i_t* vector // 反向推荐速度
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) {
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game_ctx_t* ctx = _ctx;
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(void) ctx;
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(void) entity_to;
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// For box to box collision
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if (vector == NULL) return;
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switch (entity_from->user_type) {
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case PLAYER:
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case ENEMY:
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entity_from->position = vec2i_add(entity_from->position, *vector);
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break;
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case BULLET:
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entity_from->component_mask &= ~GE_COMPONENT_ACVIVE;
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break;
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default:
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break;
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}
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}
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void init(ge_core_t* core) {
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(void)core;
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static game_ctx_t ctx = { 0 };
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core->_systems.collision.ctx = &ctx;
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core->_systems.collision.callback = collision_response;
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init_tilemap(&core->ecs, &ctx.tilemap);
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init_player(&core->ecs, &ctx.player);
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for (int i = 0; i < MAX_BULLET; ++i) {
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init_bullet(&core->ecs, &ctx.bullets[i]);
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}
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ctx.screen = (ge_render_rect_t) {
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.pos = {0, 0},
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.size = core->_render.screen_size,
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};
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core->context = &ctx;
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}
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void process(ge_core_t* core) {
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game_ctx_t* ctx = (game_ctx_t*)core->context;
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core->_render.func_draw_rect(&core->_render, &ctx->screen, GE_COLOR_WHITE);
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ge_vector2i_t* player_pos = &ctx->player->position;
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ge_vector2i_t* player_vec = &ctx->player->physics_body.velocity;
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player_vec->x = 0;
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player_vec->y = 0;
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core->_render.func_draw_text(&core->_render, &ctx->screen, "Press 'p' to exit", player_pos, GE_COLOR_BLACK);
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ge_input_event_t key;
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if (!core->_input.func_recv(&core->_input, &key)) {
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switch (key.num) {
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case KEY_UP:
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MLOG_INFO(&logger, "KEY_UP");
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player_vec->y = - BASIC_SPEED;
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break;
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case KEY_DOWN:
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MLOG_INFO(&logger, "KEY_DOWN");
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player_vec->y = BASIC_SPEED;
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break;
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case KEY_LEFT:
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MLOG_INFO(&logger, "KEY_LEFT");
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player_vec->x = - BASIC_SPEED;
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break;
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case KEY_RIGHT:
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MLOG_INFO(&logger, "KEY_RIGHT");
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player_vec->x = BASIC_SPEED;
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break;
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case KEY_ATTACK:
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ge_entity_t* bullet = ctx->bullets[0];
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bullet->component_mask |= GE_COMPONENT_ACVIVE;
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bullet->position.x = player_pos->x + 4; // TODO
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bullet->position.y = player_pos->y; // TODO
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bullet->physics_body.velocity.x = 0;
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bullet->physics_body.velocity.y = - BASIC_SPEED / 2;
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break;
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case KEY_EXIT:
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core->state = GE_ENGINE_STATE_EXIT;
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MLOG_INFO(&logger, "exit");
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break;
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}
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}
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}
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int ge_main(ge_core_t* core) {
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core->callbacks.init = init;
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core->callbacks.process = process;
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ge_engine_run(core);
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return 0;
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}
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