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Move rendering of tiles into rendering of entities

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Downgraded background rendering to each tile individually (no batching)
temporarily such that we can render all entities in one function.
This commit is contained in:
Doyle Thai 2016-07-08 16:09:18 +10:00
parent 4b74bb9474
commit c9fc34aee1
5 changed files with 110 additions and 103 deletions
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13
src/AssetManager.c
View File

@ -20,6 +20,10 @@ Texture *asset_getTexture(AssetManager *assetManager, const enum TexList type)
if (type < texlist_count)
return &assetManager->textures[type];
#ifdef WT_DEBUG
ASSERT(INVALID_CODE_PATH);
#endif
return NULL;
}
@ -28,6 +32,9 @@ TexAtlas *asset_getTextureAtlas(AssetManager *assetManager, const enum TexList t
if (type < texlist_count)
return &assetManager->texAtlas[type];
#ifdef WT_DEBUG
ASSERT(INVALID_CODE_PATH);
#endif
return NULL;
}
@ -60,6 +67,9 @@ Shader *asset_getShader(AssetManager *assetManager, const enum ShaderList type)
if (type < shaderlist_count)
return &assetManager->shaders[type];
#ifdef WT_DEBUG
ASSERT(INVALID_CODE_PATH);
#endif
return NULL;
}
@ -234,7 +244,8 @@ const i32 asset_loadTTFont(AssetManager *assetManager, const char *filePath)
printf(
"asset_loadTTFont() warning: The target font height creates a "
"glyph sheet that exceeds the available space!");
ASSERT(1);
ASSERT(INVALID_CODE_PATH);
}
#endif

37
src/Renderer.c
View File

@ -19,37 +19,6 @@ INTERNAL void updateBufferObject(Renderer *const renderer,
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
#if 0
void renderer_backgroundTiles(Renderer *const renderer, const v2 tileSize,
World *const world, TexAtlas *const atlas,
Texture *const tex)
{
RenderQuad worldQuads[ARRAY_COUNT(world->tiles)] = {0};
i32 quadIndex = 0;
for (i32 i = 0; i < ARRAY_COUNT(world->tiles); i++)
{
Tile tile = world->tiles[i];
v2 tilePosInPixel = v2_scale(tile.pos, tileSize.x);
if ((tilePosInPixel.x < renderer->size.w && tilePosInPixel.x >= 0) &&
(tilePosInPixel.y < renderer->size.h && tilePosInPixel.y >= 0))
{
const v4 texRect = atlas->texRect[terraincoords_ground];
const v4 tileRect = getRect(tilePosInPixel, tileSize);
RenderQuad tileQuad =
renderer_createQuad(renderer, tileRect, texRect, tex);
worldQuads[quadIndex++] = tileQuad;
}
}
updateBufferObject(renderer, worldQuads, quadIndex);
renderer_object(renderer, V2(0.0f, 0.0f), renderer->size, 0.0f,
V3(0, 0, 0), tex);
}
#endif
void renderer_string(Renderer *const renderer, Font *const font,
const char *const string, v2 pos, f32 rotate,
v3 color)
@ -113,6 +82,9 @@ void renderer_debugString(Renderer *const renderer, Font *const font,
void renderer_entity(Renderer *renderer, Entity *entity, f32 dt, f32 rotate,
v3 color)
{
if ((entity->pos.x < renderer->size.w && entity->pos.x >= 0) &&
(entity->pos.y < renderer->size.h && entity->pos.y >= 0))
{
SpriteAnim *anim = &entity->anim[entity->currAnimIndex];
v4 texRect = anim->rect[anim->currRectIndex];
@ -131,7 +103,6 @@ void renderer_entity(Renderer *renderer, Entity *entity, f32 dt, f32 rotate,
// NOTE(doyle): Flip the x coordinates to flip the tex
renderer_flipTexCoord(&texRect, TRUE, FALSE);
}
RenderQuad entityQuad =
renderer_createDefaultQuad(renderer, texRect, entity->tex);
updateBufferObject(renderer, &entityQuad, 1);
@ -139,6 +110,8 @@ void renderer_entity(Renderer *renderer, Entity *entity, f32 dt, f32 rotate,
entity->tex);
}
}
void renderer_object(Renderer *renderer, v2 pos, v2 size, f32 rotate, v3 color,
Texture *tex)
{

101
src/WorldTraveller.c
View File

@ -30,33 +30,59 @@ void worldTraveller_gameInit(GameState *state, v2i windowSize)
glCheckError();
state->state = state_active;
state->tileSize = 64;
state->currWorldIndex = 0;
state->tileSize = 64;
/* Init world tiles */
i32 highestSquaredValue = 1;
while (squared(highestSquaredValue) < ARRAY_COUNT(state->world[0].tiles))
highestSquaredValue++;
/* Init world */
const i32 targetWorldWidth = 500 * METERS_TO_PIXEL;
const i32 targetWorldHeight = 15 * METERS_TO_PIXEL;
v2i worldDimensionInTiles = V2i(targetWorldWidth / state->tileSize,
targetWorldHeight / state->tileSize);
const i32 worldSize = highestSquaredValue - 1;
// NOTE(doyle): Origin is center of the world
for (i32 i = 0; i < ARRAY_COUNT(state->world); i++)
{
for (i32 y = 0; y < worldSize; y++)
{
for (i32 x = 0; x < worldSize; x++)
{
i32 packedDimension = y * worldSize + x;
World *world = state->world;
World *const world = &state->world[i];
world->maxEntities = 8192;
world->entities =
CAST(Entity *) calloc(world->maxEntities, sizeof(Entity));
world->texType = texlist_terrain;
world[i].texType = texlist_terrain;
world[i].tiles[packedDimension].pos =
V2(CAST(f32) x, CAST(f32) y);
TexAtlas *const atlas =
asset_getTextureAtlas(assetManager, world->texType);
for (i32 y = 0; y < worldDimensionInTiles.y; y++)
{
for (i32 x = 0; x < worldDimensionInTiles.x; x++)
{
#ifdef WT_DEBUG
ASSERT(worldDimensionInTiles.x * worldDimensionInTiles.y <
world->maxEntities);
#endif
world->texType = texlist_terrain;
Entity *entity = &world->entities[world->freeEntityIndex++];
entity->pos =
V2(CAST(f32) x * state->tileSize,
CAST(f32) y * state->tileSize);
entity->dPos = V2(0.0f, 0.0f);
entity->size =
V2(CAST(f32) state->tileSize, CAST(f32) state->tileSize);
entity->tex = asset_getTexture(assetManager, world->texType);
entity->collides = FALSE;
entity->freeAnimIndex = 0;
entity->currAnimIndex = 0;
SpriteAnim worldAnimIdle = {NULL, 1, 0, 1.0f, 1.0f};
worldAnimIdle.rect = (v4 *)calloc(1, sizeof(v4));
worldAnimIdle.rect[0] = atlas->texRect[terraincoords_ground];
entity->anim[entity->freeAnimIndex++] = worldAnimIdle;
}
}
}
World *const world = &state->world[state->currWorldIndex];
/* Init hero */
Entity heroEnt = {V2(0.0f, 0.0f),
V2(0.0f, 0.0f),
@ -83,9 +109,9 @@ void worldTraveller_gameInit(GameState *state, v2i windowSize)
heroEnt.anim[heroEnt.freeAnimIndex++] = heroAnimWalk;
heroEnt.currAnimIndex = 0;
state->heroIndex = state->freeEntityIndex;
state->entityList[state->freeEntityIndex++] = heroEnt;
Entity *hero = &state->entityList[state->heroIndex];
world->heroIndex = world->freeEntityIndex;
world->entities[world->freeEntityIndex++] = heroEnt;
Entity *hero = &world->entities[world->heroIndex];
Texture *heroSheet = hero->tex;
v2 sheetSize = V2(CAST(f32)heroSheet->width, CAST(f32)heroSheet->height);
@ -114,7 +140,7 @@ void worldTraveller_gameInit(GameState *state, v2i windowSize)
0,
0};
npcEnt.anim[npcEnt.freeAnimIndex++] = npcAnim;
state->entityList[state->freeEntityIndex++] = npcEnt;
world->entities[world->freeEntityIndex++] = npcEnt;
/* Init renderer */
Renderer *renderer = &state->renderer;
@ -168,7 +194,8 @@ INTERNAL void parseInput(GameState *state, const f32 dt)
f (t) = (a/2)*t^2 + v*t + p, where p is a constant, old position
*/
Entity *hero = &state->entityList[state->heroIndex];
World *const world = &state->world[state->currWorldIndex];
Entity *hero = &world->entities[world->heroIndex];
v2 ddPos = V2(0, 0);
if (state->keys[GLFW_KEY_SPACE])
@ -203,7 +230,8 @@ INTERNAL void parseInput(GameState *state, const f32 dt)
ddPos = v2_scale(ddPos, 0.70710678118f);
}
f32 epsilon = 20.0f;
// NOTE(doyle): Clipping threshold for snapping velocity to 0
f32 epsilon = 15.0f;
v2 epsilonDpos = v2_sub(V2(epsilon, epsilon),
V2(absolute(hero->dPos.x), absolute(hero->dPos.y)));
if (epsilonDpos.x >= 0.0f && epsilonDpos.y >= 0.0f)
@ -248,13 +276,15 @@ INTERNAL void parseInput(GameState *state, const f32 dt)
v2 dPos = v2_scale(hero->dPos, dt);
v2 newHeroP = v2_add(v2_add(ddPosNew, dPos), hero->pos);
// TODO(doyle): Only check collision for entities within small bounding box
// of the hero
b32 heroCollided = FALSE;
if (hero->collides == TRUE)
{
for (i32 i = 0; i < ARRAY_COUNT(state->entityList); i++)
for (i32 i = 0; i < world->maxEntities; i++)
{
if (i == state->heroIndex) continue;
Entity entity = state->entityList[i];
if (i == world->heroIndex) continue;
Entity entity = world->entities[i];
if (entity.collides)
{
v4 heroRect =
@ -295,20 +325,13 @@ void worldTraveller_gameUpdateAndRender(GameState *state, const f32 dt)
AssetManager *assetManager = &state->assetManager;
Renderer *renderer = &state->renderer;
/* Render background tiles */
#if 0
World *const world = &state->world[state->currWorldIndex];
TexAtlas *const worldAtlas =
asset_getTextureAtlas(assetManager, world->texType);
Texture *const worldTex = asset_getTexture(assetManager, world->texType);
v2 tileSize = (CAST(f32)state->tileSize.w, CAST(f32)state->tileSize.h);
renderer_backgroundTiles(&state->renderer, tileSize, world, atlas, tex);
#endif
/* Render entities */
ASSERT(state->freeEntityIndex < ARRAY_COUNT(state->entityList));
for (i32 i = 0; i < state->freeEntityIndex; i++)
ASSERT(world->freeEntityIndex < world->maxEntities);
for (i32 i = 0; i < world->freeEntityIndex; i++)
{
Entity *const entity = &state->entityList[i];
Entity *const entity = &world->entities[i];
renderer_entity(&state->renderer, entity, dt, 0.0f, V3(0, 0, 0));
}
@ -323,7 +346,7 @@ void worldTraveller_gameUpdateAndRender(GameState *state, const f32 dt)
Font *font = &assetManager->font;
if (debugUpdateCounter <= 0)
{
Entity *hero = &state->entityList[state->heroIndex];
Entity *const hero = &world->entities[world->heroIndex];
snprintf(debugStrings[0], ARRAY_COUNT(debugStrings[0]),
"Hero Pos: %06.2f,%06.2f", hero->pos.x, hero->pos.y);
numDebugStrings++;
@ -333,7 +356,7 @@ void worldTraveller_gameUpdateAndRender(GameState *state, const f32 dt)
numDebugStrings++;
snprintf(debugStrings[2], ARRAY_COUNT(debugStrings[2]),
"FreeEntityIndex: %d", state->freeEntityIndex);
"FreeEntityIndex: %d", world->freeEntityIndex);
numDebugStrings++;
const f32 debugUpdateRate = 0.15f;

4
src/include/Dengine/Common.h
View File

@ -28,4 +28,8 @@ typedef double f64;
i32 common_strlen(const char *const string);
#ifdef WT_DEBUG
#define INVALID_CODE_PATH TRUE
#endif
#endif

20
src/include/WorldTraveller/WorldTraveller.h
View File

@ -6,7 +6,7 @@
#include "Dengine/Renderer.h"
#define NUM_KEYS 1024
#define METERS_TO_PIXEL 100
#define METERS_TO_PIXEL 64
enum State
{
@ -15,15 +15,16 @@ enum State
state_win,
};
typedef struct Tile
{
v2 pos;
} Tile;
typedef struct World
{
Tile tiles[2048];
Entity *entities;
i32 maxEntities;
enum TexList texType;
i32 heroIndex;
i32 freeEntityIndex;
} World;
typedef struct GameState
@ -32,16 +33,11 @@ typedef struct GameState
b32 keys[NUM_KEYS];
Renderer renderer;
i32 heroIndex;
World world[4];
i32 currWorldIndex;
i32 tileSize;
// TODO(doyle): Make size of list dynamic
Entity entityList[256];
i32 freeEntityIndex;
AssetManager assetManager;
} GameState;