95 lines
2.0 KiB
C
95 lines
2.0 KiB
C
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#include "game.h"
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#include "world.h"
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//#include "player.h"
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extern game_state_t* gs;
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// sets new beginning state for current level
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void W_StartLevel() {
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P_Spawn();
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// reset items
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gs->ps.gun = 0;
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gs->ps.jetpack = 0;
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gs->ps.trophy = 0;
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gs->ps.check_door = 0;
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}
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// hard reset current level from original data
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void W_ResetLevel() {
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Util_GetLevel( gs->current_level, &gs->levels[gs->current_level] );
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W_StartLevel();
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}
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// returns 1 if passed pixel point is not within a solid tile
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uint8_t W_IsClear( uint16_t px, uint16_t py ) {
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uint8_t tx, ty; // tile pos
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uint8_t til; // tile index
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// pixel point to tile pos
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tx = px / TILE_SIZE; ty = py / TILE_SIZE;
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// tile index at level's tx, ty pos
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til = gs->levels[gs->current_level].tiles[ty * 100 + tx];
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// solid tiles
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if ( til == 1 || til == 3 || til == 5 ) return 0;
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if ( til >= 15 && til <= 19 ) return 0;
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if ( til >= 21 && til <= 24 ) return 0;
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if ( til >= 29 && til <= 30 ) return 0;
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// kill tiles
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if ( til == 6 || til == 25 || til == 36 ) {
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P_Spawn();
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}
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// pickups
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if ( til == 10 || til == 4 || til == 20 || (til >= 47 && til <= 52) ) {
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gs->ps.check_pickup_x = tx;
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gs->ps.check_pickup_y = ty;
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}
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// door
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if ( til == 2 ) {
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gs->ps.check_door = 1;
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}
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return 1;
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}
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// level-wide state update
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void W_Update() {
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// check if at door and has trophy
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if ( gs->ps.check_door ) {
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if ( gs->ps.trophy ) {
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if ( gs->current_level < 9 ) {
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gs->current_level++;
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W_StartLevel();
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} else {
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// finshed level 10
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gs->quit = 1;
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}
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} else { // no trophy
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gs->ps.check_door = 0;
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}
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}
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}
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// update game view based on set scroll values
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void W_ScrollView() {
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// scroll view if dave is about to move off view
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if ( gs->ps.tx - gs->view_x >= 18 )
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gs->scroll_x = 15;
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if ( gs->ps.tx - gs->view_x < 2 )
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gs->scroll_x = -15;
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// do the scroll
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if ( gs->scroll_x > 0 ) {
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if ( gs->view_x == 80 ) gs->scroll_x = 0;
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else { gs->view_x++; gs->scroll_x--; }
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}
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if ( gs->scroll_x < 0 ) {
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if ( gs->view_x == 0 ) gs->scroll_x = 0;
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else { gs->view_x--; gs->scroll_x++; }
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}
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}
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