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eco2d/code/game/source/platform_raylib.c

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#include "platform.h"
#include "raylib.h"
#include "raymath.h"
#include "network.h"
#include "game.h"
#include "entity_view.h"
#include "prediction.h"
#include "camera.h"
#include "math.h"
#include "world/blocks.h"
#include "assets.h"
#include "utils/raylib_helpers.h"
uint16_t screenWidth = 1600;
uint16_t screenHeight = 900;
float target_zoom = 4.0f;
float zoom_overlay_tran = 0.0f;
#define CAM_OVERLAY_ZOOM_LEVEL 0.80f
static Camera2D render_camera;
void platform_init() {
InitWindow(screenWidth, screenHeight, "eco2d - client");
SetWindowState(FLAG_WINDOW_UNDECORATED|FLAG_WINDOW_MAXIMIZED|FLAG_WINDOW_RESIZABLE);
SetTargetFPS(60);
screenWidth = GetScreenWidth();
screenHeight = GetScreenHeight();
render_camera.target = (Vector2){0.0f,0.0f};
render_camera.offset = (Vector2){screenWidth/2.0f, screenHeight/2.0f};
render_camera.rotation = 0.0f;
render_camera.zoom = 4.0f;
// NOTE(zaklaus): Paint the screen before we load the game
// TODO(zaklaus): Render a cool loading screen background maybe? :wink: :wink:
BeginDrawing();
ClearBackground(GetColor(0x222034));
char const *loading_text = "zpl.eco2d is loading...";
int text_w = MeasureText(loading_text, 120);
DrawText(loading_text, GetScreenWidth()-text_w-15, GetScreenHeight()-135, 120, RAYWHITE);
EndDrawing();
blocks_setup();
assets_setup();
}
void platform_shutdown() {
blocks_destroy();
assets_destroy();
CloseWindow();
}
uint8_t platform_is_running() {
return !WindowShouldClose();
}
void platform_input() {
float mouse_z = (GetMouseWheelMove()*0.5f);
if (mouse_z != 0.0f) {
target_zoom = zpl_clamp(target_zoom+mouse_z, 0.3f, 10.0f);
}
// NOTE(zaklaus): keystate handling
{
float x=0.0f, y=0.0f;
uint8_t use, sprint;
if (IsKeyDown(KEY_RIGHT) || IsKeyDown(KEY_D)) x += 1.0f;
if (IsKeyDown(KEY_LEFT) || IsKeyDown(KEY_A)) x -= 1.0f;
if (IsKeyDown(KEY_UP) || IsKeyDown(KEY_W)) y -= 1.0f;
if (IsKeyDown(KEY_DOWN) || IsKeyDown(KEY_S)) y += 1.0f;
use = IsKeyPressed(KEY_SPACE);
sprint = IsKeyDown(KEY_LEFT_SHIFT) || IsKeyDown(KEY_RIGHT_SHIFT);
// NOTE(zaklaus): NEW! mouse movement
if (IsMouseButtonDown(MOUSE_RIGHT_BUTTON)) {
Vector2 mouse_pos = GetMousePosition();
mouse_pos.x /= screenWidth;
mouse_pos.y /= screenHeight;
mouse_pos.x -= 0.5f;
mouse_pos.y -= 0.5f;
mouse_pos = Vector2Normalize(mouse_pos);
x = mouse_pos.x;
y = mouse_pos.y;
}
game_action_send_keystate(x, y, use, sprint);
}
// NOTE(zaklaus): cycle through viewers
{
if (IsKeyPressed(KEY_Q)) {
game_world_view_cycle_active(-1);
}
else if (IsKeyPressed(KEY_E)) {
game_world_view_cycle_active(1);
}
}
}
void display_conn_status();
void DEBUG_draw_entities(uint64_t key, entity_view * data);
void DEBUG_draw_ground(uint64_t key, entity_view * data);
void lerp_entity_positions(uint64_t key, entity_view * data);
void do_entity_fadeinout(uint64_t key, entity_view * data);
float zpl_lerp(float,float,float);
void platform_render() {
game_world_view_active_entity_map(lerp_entity_positions);
game_world_view_active_entity_map(do_entity_fadeinout);
render_camera.zoom = zpl_lerp(render_camera.zoom, target_zoom, 0.18);
camera_update();
camera game_camera = camera_get();
render_camera.target = (Vector2){game_camera.x, game_camera.y};
zoom_overlay_tran = zpl_lerp(zoom_overlay_tran, (target_zoom <= CAM_OVERLAY_ZOOM_LEVEL) ? 1.0f : 0.0f, GetFrameTime()*2.0f);
BeginDrawing();
ClearBackground(GetColor(0x222034));
BeginMode2D(render_camera);
game_world_view_active_entity_map(DEBUG_draw_ground);
game_world_view_active_entity_map(DEBUG_draw_entities);
EndMode2D();
display_conn_status();
EndDrawing();
}
void display_conn_status() {
if (game_is_networked()) {
if (network_client_is_connected()) {
DrawText("Connection: online", 5, 5, 12, GREEN);
} else {
DrawText("Connection: offline", 5, 5, 12, RED);
}
} else {
DrawText("Connection: single-player", 5, 5, 12, BLUE);
}
DrawFPS(0, 20);
DrawText(TextFormat("Zoom: %.02f", target_zoom), 0, 45, 20, WHITE);
}
void DEBUG_draw_ground(uint64_t key, entity_view * data) {
(void)key;
switch (data->kind) {
case EKIND_CHUNK: {
world_view *view = game_world_view_get_active();
int32_t size = view->chunk_size * WORLD_BLOCK_SIZE;
int16_t offset = 0;
float x = data->x * size + offset;
float y = data->y * size + offset;
DrawRectangleEco(x, y, size-offset, size-offset, ColorAlpha(LIME, data->tran_time));
#if 0
float block_size = view->block_size*0.70f;
int16_t chunk_size = view->chunk_size;
float block_spacing = (float)block_size * (size/(float)(chunk_size*block_size));
float block_offset = size - block_spacing*chunk_size;
for (uint16_t i = 0; i < chunk_size*chunk_size; i++) {
int32_t bx = (float)(i % chunk_size) * block_spacing + (int16_t)x + block_offset;
int32_t by = (float)(i / chunk_size) * block_spacing + (int16_t)y + block_offset;
DrawRectangleEco(bx, by, block_size, block_size, GREEN);
}
#endif
if (zoom_overlay_tran > 0.02f) {
DrawRectangleEco(x, y, size-offset, size-offset, ColorAlpha(ColorFromHSV(key*x, 0.13f, 0.89f), data->tran_time*zoom_overlay_tran));
DrawTextEco(TextFormat("%d %d", (int)data->x, (int)data->y), (int16_t)x+15, (int16_t)y+15, 65 , ColorAlpha(BLACK, data->tran_time*zoom_overlay_tran), 0.0);
}
}break;
default:break;
}
}
static inline float lerp(float a, float b, float t) { return a * (1.0f - t) + b * t; }
void DEBUG_draw_entities(uint64_t key, entity_view * data) {
uint16_t size = 4;
uint16_t font_size = (uint16_t)lerp(4.0f, 32.0f, 0.5f/(float)render_camera.zoom);
float font_spacing = 1.1f;
float title_bg_offset = 4;
float fixed_title_offset = 2;
switch (data->kind) {
case EKIND_THING: {
float x = data->x;
float y = data->y;
const char *title = TextFormat("Thing %d", key);
int title_w = MeasureTextEco(title, font_size, font_spacing);
DrawRectangleEco(x-title_w/2-title_bg_offset/2, y-size-font_size-fixed_title_offset, title_w+title_bg_offset, font_size, ColorAlpha(BLACK, data->tran_time));
DrawTextEco(title, x-title_w/2, y-size-font_size-fixed_title_offset, font_size, ColorAlpha(RAYWHITE, data->tran_time), font_spacing);
DrawCircleEco(x, y, size, ColorAlpha(BLUE, data->tran_time));
}break;
case EKIND_PLAYER: {
float x = data->x;
float y = data->y;
const char *title = TextFormat("Player %d", key);
int title_w = MeasureTextEco(title, font_size, font_spacing);
DrawRectangleEco(x-title_w/2-title_bg_offset/2, y-size-font_size-fixed_title_offset, title_w+title_bg_offset, font_size, ColorAlpha(BLACK, data->tran_time));
DrawTextEco(title, x-title_w/2, y-size-font_size-fixed_title_offset, font_size, ColorAlpha(RAYWHITE, data->tran_time), font_spacing);
DrawCircleEco(x, y, size, ColorAlpha(RED, data->tran_time));
}break;
default:break;
}
}
void lerp_entity_positions(uint64_t key, entity_view *data) {
(void)key;
world_view *view = game_world_view_get_active();
if (data->flag == EFLAG_INTERP) {
#if 1
data->x = smooth_val(data->x, data->tx, view->delta_time[data->layer_id]);
data->y = smooth_val(data->y, data->ty, view->delta_time[data->layer_id]);
#else
data->x = data->tx;
data->y = data->ty;
#endif
}
}
float platform_frametime() {
return GetFrameTime();
}
void do_entity_fadeinout(uint64_t key, entity_view * data) {
(void)key;
switch (data->tran_effect) {
case ETRAN_FADEIN: {
data->tran_time += GetFrameTime();
if (data->tran_time > 1.0f) {
data->tran_effect = ETRAN_NONE;
data->tran_time = 1.0f;
}
}break;
case ETRAN_FADEOUT: {
data->tran_time -= GetFrameTime();
if (data->tran_time < 0.0f) {
data->tran_effect = ETRAN_REMOVE;
data->tran_time = 0.0f;
}
}break;
default: break;
}
}
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